I'm cleaning up the score of one of my orchestral pieces, and I'm stumped by how to notate the following: I have the strings play long descending chromatic scales (fingered, not a sliding glissando) in 32nd notes. For the purposes of MIDI I wrote out every note, but for obvious reasons this makes the score hard to read. What's the best way to notate this? Basically, the intention is to have a deliberately messy-sounding descending chromatic scale where the notes are (approximately) individually bowed. The gliss starts at a fixed pitch and ends (approximately) at a fixed pitch. What's the best way to notate this that doesn't result in a mass of 32nd notes that clutter the page? The gliss spans about 2 octaves, so some kind of abbreviated notation would probably be necessary.
I looked up various notations of glissando, but am doubtful which one conveys what I want, since most sources on string glissando notation focus on the gliding variety (where you drag your finger up/down the string in a single bow stroke), whereas what I want is a bowed, tremolo-like glissando sound.