There are also Stealth-Only Heist versions of the heist tracks, but implementation is wonky unless I can figure out a way to get the game to ignore most of the stealth events besides the initial one and the Point of No Return timer. If you have issues getting the stealth-only tracks to play, you may need the Music Volume Mixer mod which fixes some bugs related to custom stealth-only tracks, and will need to hover over the tracks in preplanning to activate the music preview right before starting the heist in order to load them properly. This is less a problem with my mod and more just the stealth-only music module itself.
These were found in the files of the day one patch of PAYDAY 2 by okrinn. All rights belong to the original composer, Simon Viklund, and the rights to the PAYDAY franchise go to Overkill and Starbreeze.