Maybe could add multiple sounds for votemap and randomize it? My friend and I we're playing on the Hard server and he was like "wtf is that sound" and yeah I told him is votemap. Or maybe have the option to change the votemap song in settings
While it's not quite what you're suggesting, bb_votemapmusic 0 might work for him in the meantime (mutes the sound).
I like the idea of changing it yeah, I know some players have gmod volume on loud, and it can startle them. A few choices wouldn't hurt, although I dunno how you'd go about toggling them. Agreed if they don't like it they can ofc just turn it off though. I think there should be a speaker icon on the vote map screen in one of the corners which mutes it personally, I have no issue with but I have gmod on like 2% volume. I know it can drown out peoples music etc.
As of the next update you can set the "bb_votemapmusic_path" convar to change the sound of the votemap music. Any sound you want to use must exist within the garrysmod/sound folder (or relevant source game), must be a .wav, .mp3 or .ogg and confirm to all the usual source engine sound requirements. E.g. the below would play a different song from HL1. Code: bb_votemapmusic_path music/hl1_song9.mp3