I watched LOST for the first time a week or two ago and loved when this song played. Personally my favorite song on the soundtrack but you may have a different opinion. Also apologies for being away so long!
If anyone is wondering what I used, the program is called "Embers" and it is free to use with a watermark and a few basic features missing. However it is a very powerful program regardless, feel free to check it out here: embers.app/
All rights go to Michael Giacchino who composed this piece. I do not own this.
Enjoy!