ive only done dmt once but i sure as hell crossed over, i was so far into another world that i didn't hear anything coming from the everyday reality, not the people around me, not the music across the way nothing. A few times i popped back into the everyday world (when people were trying to move me...long story i was at a burn and the burn was about to start)...but in all honesty i cant imagine music being necessary at all if you truly break through that being said, i would suggest the op smoke more or change your methods cuz if music is what is influencing the closed eyed visuals i dont think you've inhaled enough break on through to the other side
try taking a just short of breakthrough hit while playing a musical instrument...it gets ridiculous...
experientil kashmire shaivism in action at break through because you will simultaneously be a creator and the created...god damn
i don't find it makes much of a difference... music.. no music... its sorta like.. clothes? no clothes? sitting in a cluttered room vs sitting in a clear room... they are different experiences, yes, but theyre so unique and different that neither is better or worse.. just different. I would not smoke dmt whilst listening to something like greusome war footage though. at least willingly. really though, its just sound and during the most intense part of the trip it won't be distinguishable anyway