Where is the sound/music stored in Minecraft Version 1.7.4?

People have been saying it should be in the 'assets' folder but there's no such for me. Everything plays fine in game but I can't locate the files (especially for the new music, I want it on my mp3 player) even if I search my entire c drive where I know it's installed. I've even tried looking in some of the.jar files using a zip program but so far haven't found anything.

.minecraft > assets > virtual > legacy > sounds

If it's not there, then you have an incomplete cracked version of minecraft.