In the same way a blind person can learn how to echolocate objects and ride a bicycle, we can feel the vibrating sound source (a voice or an instrument) specific set of qualities, and each one of our different individualized brain can translate sounds/music in our own qualititive "colored" and "geometrical fractals " inner "viewing"... music need sound but sound means something only when it is transformed in some music...
«Jungle sing only for pygmies»-- Groucho Marx 