I recall seeing the music impregnated everywhere on the walls of my room on a medium dose of shrooms. Apart from that time, once I got orgasms waves all over my body when listening to music (sound->touch) on LSD+Cannabis.
Ketamine and Methoxetamine definitely. I've seen songs painted upon the canvas of the universe, felt the vibrations of melodies ripple through me. These two drugs are wonderful for synaesthesia.