My reply was a suggestion i know the soundtrack was already randomized a bit but i don't think the third part is necessary, and i suggested that you make ask kristjan to make different alternate version of the songs that are like the new part 3s but instead of mixing with the pre-existing songs they can play independently for the duration of a biome

I think instead of slitting the already great 2 part track into a randomized 3 part one was the wrong aproach for making the music sound less repetitive instead i think you could have had 2 entirely yet similar tracks for each level that played every run like alternate tracks. For example sewers 1-5 could be the old tack but when you reach the prison new music plays for the 5 floors