i bought an item called music, how do you use it... and how do you add music to your toribash? (in 4.2 beta 2) if any one can help thank you

Try beta 3

What do i do to add music?

Upload a .WAV or .OGG converted audio track. Go ingame with it activated and use the music commands to stop/start your playlist/tracks.
Commands:
/music status - info about current playlist/track
/music queue - list tracks in queue
/music list username - list custom/username tracks
/music normal|repeat|random - control what track is played next
/music play custom/tori/track1.ogg - play a specific track
/music play tori - play all tracks from custom/tori
/music volume [0-128] - set music volume
/music start|stop|pause|resume|next|prev

I was under the impression that custom music was taken out.

Music only works in 4.2 beta 3+