Shoegaze and the influence of classical music on its approach to timbre is something that hasn't been explored as much as it deserves.

The orchestral tradition has always taken timbre seriously as a compositional element — the specific combination of instruments, the voicings, the way different timbres blend or clash. This is different from the rock tradition, where timbre has usually been secondary to melody and rhythm.

Shoegaze is rock music that treats timbre with something like the seriousness of classical music. The specific combination of guitar tones, the way the reverb tail of one instrument merges with the attack of another, the overall timbral blend of a shoegaze arrangement — these are compositional choices in the same sense that orchestral voicing choices are compositional.

The shoegaze artists who work most intentionally in this tradition are the ones who have spent time with orchestral music and understand what treating timbre as a primary compositional element looks like. The influence isn't usually direct quotation or even conscious borrowing; it's an absorbed way of thinking about sound design.