I would like to be able to have multiple tracks playing that are always at the same position in their audio stream. The best example of this that I can think of is the Coral Riff boss fight in NecroDancer ( <a href="https://crypt-of-the-necrodancer.fandom.com/wiki/Coral_Riff" rel="nofollow">https://crypt-of-the-necrodancer.fandom.com/wiki/Coral_Riff</a> ). Parts of the music goes away when each tentacle is killed. Another example is what happens in video games when you move from one area of a level to another, the music changes a little bit. It would be nice to be able to do those. This is mostly because I plan on doing a dungeon with a haunted orchestra, and it would be great if I could silence instruments.