Twist: 8-Bit Guy and 8-Bit Keys guy are two people living separately that are twins.

@reistrx

3 жыл бұрын

😳

@authorlilhyz7121

3 жыл бұрын

@@reistrx 😂😂😂😂

@authorlilhyz7121

3 жыл бұрын

@@reistrx red cheeks netrueal mouth big eyes surprised eyebrows

That looks like a Prophet 600 on the front of that software case. That's the world's first synth to have MIDI!

@theanalogkid7

7 жыл бұрын

You probably already have seen this, but I got curious and found this page of info: www.mycommodore64.com/2011/09/14/sequential-circuits-musicmate-1984/

@rzeka

7 жыл бұрын

and the company who made this one is "Sequential", which I'm pretty sure is the same "Sequential Circuits" company that made the prophet synths

@ursamage

7 жыл бұрын

It is a Prophet 600.

@2pkf3

6 жыл бұрын

I have one of those

That "other" Keyboard shown on the software package is in fact a synthesizer, the Sequential Circuits "Prophet 600", a little brother of the well known Prophet 5. :)

@scottcupp8129

4 жыл бұрын

I actually was fortunate enough to own a Prophet 5. I would love to find a Prophet 10. That is a rare beast.

@scottcupp8129

4 жыл бұрын

You're right though. Prophet 600. A cool synth!

@mrz80

3 жыл бұрын

The 600 was the first commercial keyboard with MIDI.

@maxmatson1578

2 жыл бұрын

@@mrz80 that and the Roland "Jupiter 6" I think they came out at the same time and when they first showed midi at NAMM they demonstrated by connecting the Jupiter 6 and the prophet 600 together

@maxmatson1578

2 жыл бұрын

@@mrz80 that and the Roland "Jupiter 6" I think they came out at the same time and when they first showed midi at NAMM they demonstrated by connecting the Jupiter 6 and the prophet 600 together

If this was made by Sequential Circuits, the keyboards on the back of the box is a Prophet 600 Synthesizer.

@stephenbaldassarre2289

7 жыл бұрын

Crimson Sunrise It IS a Prophet 600. I have one just like it, great synth. The manuals for early MIDI SCI keyboards specifically talk about the C64 as a companion for home recording. Side note, the joystick port is translated to MIDI data with that dummy keyboard.

We love that you've quit your day job, David! :D Sequential is best known for their Prophets. And that's one of them you saw on the back of the software package.

@alexanderbill252

7 жыл бұрын

When did he mention that he quit his job?

@AndersEngerJensen

7 жыл бұрын

In one of his 8-Bit Guy videos around Christmas or shortly after new year's. As of February this year, this is his fulltime job and we can expect a significant increase in videos. So remember to let those ads play and support him on Patreon, it's all for all our benefit in the end. :)

@alexanderbill252

7 жыл бұрын

Oh right I totally forgot about that. So that's why he pushed out four videos on the 8-bit guy the past month. Love it

@SalimOfShadow

6 жыл бұрын

Anders Enger Jensen You're a MASTER

@8dioproductions

4 жыл бұрын

: ))))

The joystick port also contains the paddle port. Maybe they encode the pitch as a resistance against that paddle input. Rerun your program with registers 54297 and 54298!

@maximedavid3037

7 жыл бұрын

I hope he'll see this comment !

@PicturesqueGames

7 жыл бұрын

Or it has a handshake from c64 to it so simple peak couldn't detect jack. Since they have copy protection on disk - i think they were afraid that competition would dissect it. That might be the reason also.

@PicturesqueGames

7 жыл бұрын

To test that - recommend starting from arduino (since it has much faster cpu) - you can build a basic kempston input there (sega genesis to arduino adaptor is a good place to start). Then - just blast serial out with all the possible values from 0 to last one then start listening after each number. If that's a handshake - after correct handshake is given - keyboard should send acknowledgement.

@xiretza3793

7 жыл бұрын

Alternatively, record the data sent over the joystick port.

@PicturesqueGames

7 жыл бұрын

passthrough with snatcher. yeah, that definitely can work.

Sequential - the makers of the Prophet synth - is Dave Smith' old company. He was one of the brains behind the development of midi which basically sends a digital signal over two lines, I would guess that this keyboard does that too over two of the joystick lines.

I'm so glad he's doing youtube full time.😊😊😊

Just a random company "Sequential", never really amounted to anything. Especially their attempt at creating a universal communication standard for musical instruments failed miserably. I think it was called MIDI or something.

@idevicecentral

7 жыл бұрын

aceyage sarcasm level: infinite

@kemyszgamingplarchiwum7809

5 жыл бұрын

MIDI didn't fail

@orion681

5 жыл бұрын

@@kemyszgamingplarchiwum7809 more sarcasm. Let's not forget about the legendary prophet synths they made

@joemontgomery6658

5 жыл бұрын

Lucas Choc it was sarcasm...

@steegosaurus

5 жыл бұрын

Ikr, it was a total fail. It was the totally fail the fail the total fail. It totally fails sooo bad. It was sooo stupid.

Its probably been mentioned already, but; The mystery keyboard on the software box is the Prophet 600 by Sequential Circuits.

The C64 Joystick port isn't just digital, it has an analogue component connected to the SID. I expect the keyboard is nothing more than a potential divider circuit split across the keys, and the ADC in the SID chip turns that voltage into a value of 0 - 255, more than enough for 32 keys. Audio samplers also used this port, because the SID did the actual sampling.

@grahampickard3325

5 жыл бұрын

I'd assumed the 5 digital lines were encoded to give you 32 values.

@davidrubio8673

5 жыл бұрын

@@grahampickard3325 not really because in such case it will only detect 1 key push down and it is polyphonic, it will actually require some sort of interface

@grahampickard3325

5 жыл бұрын

david rubio yes of course it’s 3 voice polyphonic. Doh!

@Tuschedz

5 жыл бұрын

Couldn't there be three different 5-bit values being driven? Seems like quite a coincidence that there are five digital inputs and a very unusual 32-key layout.

I'm so glad you started uploading more. One of my fave channels for such an interesting, obscure hobby. I love it.

'some other keyboard' lol it's a prophet 600 by the same company

The second program seems to actually be a diagnostics for your sid chip and if something is defective. In other words it's there to be diagnostics program from you keyboard and sid chip. Your welcome if you see this 8-bit.

I can't tell ya how nice it is to see videos more often on your channel. You've got a really unique thing going on here; thanks for the hard work!

Hello from Brazil, we love your work

So many videos coming out recently! I'm loving it!

8-bit guy - you forgot that joy port includes also 2 pots - 2 ADCs, which can be used for keys decoding using extra resistors ladder. Can you check also POTX/POTY paddle registers when you press Music Mate keys?

@8BitKeys

7 жыл бұрын

I didn't forget.. I just didn't show it. But I did check them. There was no activity.

@marypenley5257

5 жыл бұрын

I was thinking of the paddle inputs, but seeing as there is no activity just makes this a complete mystery as to how this works over the joystick port.

@ivorjawa

3 жыл бұрын

Time to break out the logic analyzer and oscilloscope.

Sequential made some of the most legendary synths of all time.. prophet 5 and pro 1 to name a few. Dave smith of sequential circuits then went on to develop the MIDI standard and designed the kong wave station amongst other famous synths for other manufacturers. He is at present smashing it out of the ball park making his own synths again, look up dave smith instruments and see for yourselves!

@envueltoenplastico

Жыл бұрын

The Sequential company even got their original name back since this comment. Sadly, Dave Smith passed away suddenly earlier this year. RIP.

@davidlewis1787

Жыл бұрын

@@envueltoenplastico I was shocked and sad when I learned that. A lovely man by all accounts x

I'm glad I get to watch this content, a LOT of it, like almost everything you show off, I've never seen. which makes it that much better to watch!

Sometimes we look for nice, normal, quality entertainment on KZread. This is the place to find it. Although unique in content, very calming in mood.

Thanks David for the amazing videos you produce! I normally don't command on KZread, but I love watching your videos. Keep up the good work! Greetings from Fryslân, The Netherlands!

You make the best videos dude! I could watch an entire video of you playing music. I look forward to your next one, take care!

Holy... now that's some good background music!

@AndersEngerJensen

7 жыл бұрын

C0deH0wler Glad you like it, you can find all songs here: soundcloud.com/eox-studios/sets/all-songs Some of them are also on the CD David is selling on his website. :)

From Sequential Circuits, famous for keyboards like the Prophet-5. Oh, and this ... 1:14 ... that's an artist rendition of a Sequential Circuits Prophet-600.

Dude you crack me up with your step by steps on cleaning 8D, keep it up!

7:35 This looks like the same mechanism as that intellevision keyboard you made a video about

9:49 Love the smile!

I have no musical talent but I love watching you tear down old keyboards and software and explaining how they work. great channel!

I love that you are uploading to your channels consistently ever since you made KZread a full time job!

My personal routine when an 8-bit Keys or 8-bit Guy video comes out: press like, then watch.

@NijiDash

7 жыл бұрын

Yup. I hate the thought of forgetting to like his videos after having watched them, so I do the same!

@elisttm

6 жыл бұрын

so you’re just admitting that you’re a tool

I never knew that Sequential Circuits (the makers of my Pro one synthesiser), made computer peripherals? Amazing stuff!

When you played that swinth tune... it brought me back good memories, like last week when I used it to test the speaker on a 1802 monitor I found at school.

i had one of those way back in the day. I thought it was pretty cool and (for a beginner),I learned how to play a lot of stuff on it.

Welcome back, David. Great video as usual.

i love the way the sid chip sounds. one of these days i will get me one of those sid powered drum machines.

Here in 2020. I had always wanted this keyboard when I first saw it in Run magazine as a kid in the mid 1980's. I was also beginning to get into synths as I started to read Keyboard magazine at the same time, although I didn't own any synths. The C64 was a fundamental subtractive synthesizer due to the SID so plugging this keyboard into the C64 would complete that interface to become a synth piano keyboard machine. Unfortunately, it cost a lot for me as a kid, so eventually never got it. In highschool, for a finals project in computer class, I developed a program that showed off the C64 as a live-action performance synth, using the keyboard as a multi-touch keyboard (for chords), with paddles & joysticks as additional controllers to affect the synth SID sounds, such as behave like pitch & modulation wheels. Imagine had I had this Sequential keyboard along with it, it would have been a better live demo setup shown in front of the class (all of us had to show their own projects). I still have my C64 although it's in storage right now. Same with that finals synth project, it's buried somewhere in my piles of floppies. For the SID, I was able to make a dual-SID setup in the late 1980's, so that it could play 3-6 voices. Anyway, the MusicMate would not only have been great to use as a music recording tool but also for live performance. Perhaps turn it into a keytar for use as a lead synth... although I have no idea how long the key contacts inside would last because it was designed cheaply using foam (sponge) instead of traditional springs & perhaps the electrical contacts would not have lasted & give out after many stage performances.

I sub to a lot of channels and find a lot of them to put out too much content I don't really care about so I skip them until I see one I'm interested in. Your channels are different though. I always watch your videos as soon as I see they're up. I think it's the passion you have for the material. Keep up the good work.

@1:11 is the Prophet 600 from 1982, the first commercial synth with MIDI interface. Another Sequential model that made use of the C64 as a sequencer was the Six~trak, one of the first multi timbral MIDI synths.

DUDE THAT WAS THE PROPHET ON THE COVER!!!

@soriacx

7 жыл бұрын

Prophet 600 exactly :) SCI had several prophets in their model list....

I love both of his channels so much

I love your CD BTW! I have been looking for music like this for a while that gives that nostalgia feeling, but still very moving. I LOVE IT!! Everyone should own a copy!

@AndersEngerJensen

7 жыл бұрын

Penfold8 High five from the guys and myself! :D (There might also be a cassette down the road... Who knows ;))

This is my favourite video you have done so far, not because it's a good product but because I have known of Sequential Circuits since a kid, had many of their products and even the newer ones Dave Smith did, and never knew this existed! I gotta get me some retrobright :D

Sequential, as in the Sequential Circuits? The makers of the renown Prophet synthesizers?

@phant0masterr

7 жыл бұрын

yes founded by legendary Dave Smith

@Somniferomusic

7 жыл бұрын

Amazing, ins't it?! :) I did not know befora that SC/DS had such a product released.

@BarnabyFWNightingale

7 жыл бұрын

Tuze YES! LEGENDARY company!

@renemunkthalund3581

7 жыл бұрын

Yes. A bit dissapointed to hear David (host of an 80s keyboard channel) call it "A company called Sequential" :-) and not just breifly mention their legend.

@Wiktorion

7 жыл бұрын

Yes! I was baffled that he didn't go in depth about Sequential Circuits. It's a great company. I bet he would be able to interview Dave Smith or someone from DSI about this keyboard.

Hi, really like both of your Channels. If there is no digital input, it will use the analog Paddle Input. Its located in the SID chip on $D419 $D41A via Joy-port, try too Peek 54297 or 54298. There are 255 value each Register, so 255^2 Keys possible :D

David, If I were into the Commodore line of computers, you would be like a demigod. And even though I'm not it's still really awesome that you do so much for the Commodore community!

The Atari/Commodore joystick port can be used for some rather unusual things. Atari designed an interface (the XEP-80) for their 8-bit computers that plugs into the joystick port and provides an 80-column text and 320x200 graphics video output and a parallel printer port!

I don't even have that big of a care for keyboards but I love computers and retro technology and you manage to make all this interesting for me, and hell maybe I'd get into keyboards because of this.

Love your vids! I grew up with this wonderful machine (64). :)

They made quite a lot of sound accessories for the Commodore, nice video!

That's not just some keyboard they show on the box, that is a Prophet 600. Successor of the legendary Prophet 5, one of the first polyphonic synthesizers that didn't way a ton. Sequential Circuits is a well-known brand in the synthesizer world, mostly for the Prophet 5 and 600. Real good synths, never knew they were in the commodore business as well. Nice oddity!

Even the failures are fascinating and upworthy. Great vid.

Spongy keys? The Roland SH1000 got it all. Beautiful review. Rock on, David. You're the man!

I really like all of your videos because you don't have any god awful characters or dumbass skits. Intro is short and sweet and the videos are informative. Kudos buddy.

David, you actually said the name of the songs you were playing. I think my mind is at peace now. (please keep doing it)

If they do a resistor ladder and use the analog input of joystick port they can use as keys as the adc resolution allow. I did that to use a matrix keyboard on a arduino using analogInput instead of using a ton of digital pins.

The "Mystery chip" looks like an I²C chip. Back in the 1980s Phillips came up with I²C to be able to control various stuff inside a TV or VCR. The internal controller of the TV or VCR can communicate with everything using only 2 portpins over the I²C bus. There are many chips available, e.g. tuner chips, memory (EEPROM for channel programming), OSD chips motor controllers, IR remote controllers and the like. There are also I/O port extenders available which work like a VIA (or CIA) but need only 2 pins to communicate with a CPU. Since the data line of I²C is bidirectional, you need 2 I/O pins and a diode on the C64. It looks like there is a diode in the path of one of the wires to the chip. So all you need for the keyboard is: +5V GND CLOCK DATA (2 lines for the C64 Joyport) RESET The mystery remains which of the many, many I²C chips could it be? The port extenders don't need their own clock, this explains the lack of anything else. The chip works with the clock line when sending data. When no data is exchanged, the chip does nothing. Nowadays you would use something like the MAX6955 which is a LED display driver with integrated key input capability. So you could add LED displays or single LEDs on the keyboard and have something to scan the keys in. But while popular for the Arduino, this chip was not available in the past century.

awesome content David! thanks!!

I've just watched this episode for the second time. Cool keyboard in it. :)

3:26 i could listen to these noises all day

love how it looks cleaned up

*My Speculation* A 5 wire connection; green and white = 5 Vdc and ground; orange = serial data (out); two blacks = attn and sync clock (in). The 40 pin mystery circuit is most likely a small piggybacked PCB with a matrix encoder and an 8 bit parallel to serial shift register (given the IC tech at the time). CIA 1 location 56322 and 56323 set the data direction on the 4 joystick lines for each port so this could be set so the CIA outputs on the two black wires "attn and clock". This would be why your reading the joystick port showed no activity since you were not sending the signals out on the black wires. It would take an oscilloscope to determine which black wire was the attn and which is the clock. You could write an interrupt patch to read the port and out put to the screen, and install it before running the keyboard program - it may not work if the program uses the interrupt itself to read the port and over-rights your vector address.

8-Bit Keys I haven't heard of the Retro Bright process before. It looks great !!!

SEQUENTIAL was established by Dave Smith. He has been creating synthesizers on Dave Smith Instruments NOW! This is retro hybrid synth. It is very interesting. Thanks for upload!

Fantastic nostalgic items!

That keyboard on the box looks to be a Sequential Circuits Prophet series keyboard. SCI (Sequential Circuits) made some serious big time synthesizers in the eighties, very desirable and powerful devices in their time.

Quite an intriguing device, I never knew the joystick ports could be used as a serial interface, but then it has been many years since I last played with a C64... :)

Hi Dave, the synth on the frontcover is the fabulous Sequential Circuit SIX-TRAK. Another synth made to work with the C64 is the Ensoniq Mirage, the surfboard sampler

Sequential Circuits are those same innovative folks who gave us the legendary Pro One & Prophet 5 Subtractive Analogue Synthesizers! ( see Dave Smith )

"Made by a company called Sequential." -- LMFAO I died. This is Sequential Circuits you are talking about. They made the Prophet synthesizers. Some of the most loved in history... Awesome video as always. :)

The keyboard on the box is a Prophet synth (probably a Prophet 5) which was also made by Sequential Circuits.

The hardware to read the keys is a shift register thing. Two of the joystick port lines are used for power and ground, two others are used to select the key to read, and one is used to read the state of the desired key (on or off). One of the selection lines resets the desired key to the first one (far left - F), and the other moves the desired key up a semitone for each off-to-on transition. Code has to modify the ports to provide power to the appropriate line, to set up the two selection lines as outputs, and to set the lowest bit as the input for reading the key state. Here's a quick BASIC program to scan once and display the currently pressed keys: 10 POKE 56323,12 20 POKE 56321,0 25 FOR M=1 TO 32 30 POKE 56321,8 40 P=PEEK(56321) 50 PRINT M,P 60 POKE 56321,12 70 NEXT M 90 POKE 56323,0 I disassembled the MusicWare code to learn this. Also, I recently posted G64 images of the 4 optional MusicWare packages and scans of the manuals to the Internet Archive: archive.org/details/sequentialmusicmate I've also written some proof-of-concept code to get this keyboard working with an Atari 2600. I assume this keyboard will work with most computers and game systems that have Atari 2600-compatible joystick ports, as long as you can control which lines are inputs and which are outputs. Of course, someone would need to write some interesting software to actually use it! I ordered this keyboard and the Sound Maker software when I was in high school. I actually used it live in a local rock band (Desert Ice) for a while before I bought a Roland Juno-106 synthesizer. The SID chip was really noisy…

Wow. I had no idea that Sequential Circuits created stuff for the c64. Nice video David.

David, the keyboard shown in the software's box is a Sequential Circuits Prophet 600, a famous analog synthesizer from the 80ies.

Dude I think youre my new favorite channel...TEACH ME.

1:13 That is a Sequential Circuits Prophet 600, the first synthesizer to have MIDI.

hey David I love the videos man

I it's has not already been said but the picture on the disk box is of a prophet 600, sequential/sequential circuits were a manufacturer of professional keyboard synthesizers/samplers in the late 70's to the mid 80's starting with the Prophet 5, the first semi-reasonably priced polyphonic synthesizer with memories.They went on to co design MIDI with Roland (they were the main players in the MIDI standard) and making a range of keyboards from budget synthesizers to sampling keyboards.

David! Next time you encounter an ABS crack, try this! I had a screw "tube" on the bottom half of a cartridge that broke off right at the base. I dabbed just a little bit of *acetone* on both sides with a q-tip, lined up the two parts and pressed them together for a few minutes. I felt the break "set", as if the two pieces wouldn't shift anymore, so I let go. I then waited a couple more hours and it now honestly feels as solid as if it was never broken at all, because as far as the plastic goes, it's one piece again.

Love You Content ;) Keep It Up David

Yes! Thank you KZread for a good recommendation finally.

Holy crap you're uploading so many videos!

This guy has awesome videos!

Hey, great vids! I really enjoy your channels. This channel got me thinking about all my old keyboards I uses to have as a kid, and I remember one old cheap Yamaha midi keyboard I used to have (sorry, can't remember the model). I had replaced the original power adapter with a universal adapter at some point, and eventually I figured out that if I set the voltage on the adapter to less than what was recommended I could trigger the keyboard to enter a funky mode with a bunch of different sounds and drum effects that normal, and everything would behave differently....have you ever run into anything like this?

3 notes at once! Your talkin' crazy man;-)

All of your videos are fantastic but I always find myself wanting more demonstration of the actual product lol take that as you will, your keyboard skills fascinate me lol

It's probably somewhere here in the 669 comments, Steve Smith is the founder of sequential circuits and one of the fathers of the midi spec. He now runs Dave Smith instruments. He's been doing this stuff for a long time.

Man, only if I had had this when I had my Comm64 when I was a kid... nice!

Great job 8-Bit Keys

I like the new intro music!

Great video. Thanks!

Great video!

Well, those were fascinating times, pure FM music!

@8BitKeys

7 жыл бұрын

Actually, this is not FM music. I'm not even sure what you would call it, but I think it may be subtractive synthesis.

@mima85

7 жыл бұрын

Yes correct, it is subtractive synthesis. The SID is a hybrid subtractive synthesizer, where the oscillators' classic wide-spectrum content analog waveforms (square/PWM, triangle and sawtooth) are generated digitally, but being converted in an analog signal to feed the analog filter, which is common for the 3 voices instead of having a filter for each.

this is DOPE! sounds awesome!

@padlockbeats151

7 жыл бұрын

and i think you need a plastic spudger tool..

Referring to just after 2 minutes in, and a possible explanation would be binary. With 5 digits to work with, you could have a total of 32 outputs from 00000, to 11111 and everything else in between.

Sequential also made a synth called MAX that was edited from a C64 (It didn't have any controls onboard to speak of). It sounds pretty cool!

Port has 5 digital ON/OFF pins and two analog 0-255 ones that can be used in digital way as well. Shorting +5V with Pot AX and AY can give additional 2 buttons. Giving 128 possible states. You can then assign a binary number to each key like 0000001, 0000010 etc. and even use one bit to tell if key is being pressed or not. MIDI signals works in that way. They send instructions about what key was pressed and released. This keyboard could even work without any chip. Just every key should have a switch that gives a signal in it's mid position - when it's being changed from off -> on and otherwise. Probably bad solution for a commercial product, but it could be fun experiment for us:)

Dude this is a SEQUENTIAL product. That's Dave Smith, the inventor of the Prophet synthesizers that Peter Gabriel and many others used in the 80s. They still make stuff today!

'I just put some super glue down the crack'. This amused me more than it should.

A video every 3 days? What is this magic?

@isakwatz11

7 жыл бұрын

Crusader Mapping It's called full-time youtuber