MUSIC = VUSIC

Silence = Black

Volume = Brilliance

Quiet = Dim

Loud = Bright

Tone = Hue

Bass = Shade... Have been doing some thinking on this and this could also possibly be Saturation. The more saturated the color, the more bass is the sound. The less saturated the color, the more treble the sound.

Treble = Tint

Audition = Vidition

Auditorium = Viditorium

SONIA = LUMIA

Audio = Video