Synesthesia

I'm trying to represent music visually in this next sequence and it's proving rather difficult. I had a look at the Bach Toccata & Fugue in D Minor segment of Disney's Fantasia again to see if that would inspire me, but no such luck. So I drew this based on an old sketch from a couple years ago and it seems to be closer to what I wanted. Whether or not it accurately represents sound is another matter. At least it looks nice. :p

The biggest problem is I'm trying to draw this as black & white lineart, but to be a better representation of synesthesia, it would work much better in colour. I think I'll do a black & white and a coloured version and decide later which one to use.