USACI Sells packs of up to 5 CDs on their website

According to the USACI Rule Book in Street Beat Class:

Street beat 1, 2 and 3 uses the General rules with the following exceptions:
All Street Beat competitors will be required to use the official USACI Street Beat music for this division.

According to the USACI Rule Book in Bass Battles:

The competitor will choose their own music. The music must be commercially available, copyrighted, and nothing
re-bassed and have no profanity no exceptions. There will be no solid tones, note must change, the judge will
make the final call, and if your run is deemed illegal you will receive a 0, and must choose a new song for your 2nd