I actually know a decent amount about music production while blind.
So it just depends on what DaW you're using. There are also accessible MIDI controllers like Komplete Kontrol and the soon to be accessible Maschine MK 3.
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Here's a YouTube channel that focuses on Logic Pro X accessibility using VoiceOver:
$1You can ask me if you have more specific questions but there's also a bunch of resources if you google around.