Since the nether update, Mojang have specified which biomes new music tracks can play in. While I love that the option for biome dependent music exists, it does mean that certain tracks can be missed for long periods of time if staying in a particular biome/part of the world.

This pack removes the biome dependency of most overworld and nether music tracks. Some exceptions include:

• Ancestry still only plays in the deep dark.
• Underwater music still only plays underwater.
• Creative specific music still only plays in creative.