For color music you will need:
disposable syringes,
LEDs,
wires,
CD,
and any gel.
If you want, you can replace the gel with epoxy resin, this will probably be even better and more durable.
How to boil eggs so they peel quickly
A simple way to make printed circuit boards (not LUT) | Do it yourself
Do it yourself - crafts and master classes | Page 255
Decorative autumn wreath | Do it yourself