Audiotori is a cascading sound pack manager. It allows you to use multiple sound packs at once to replace the default Minecraft sounds, or replace sounds added by other mods.
For instance, you can have a music sound pack loaded at the same time as a Vintage Minecraft Alpha sound pack.
Requires ModLoader. The FML variant that is included in Minecraft Forge should also work.
Usage
Install notes
Briefly
Changelogs:
1.5.2 – r6
For Minecraft 1.5.2
For Minecraft 1.5.1
For 1.5
For Minecraft 1.4.7
For Minecraft 1.4.5