Is it just me, or is this something that is never done anymore? To me, it is one of the best sounding techniques. David Gilmour on Animals, Brian May on practically anything...
incredible sound! in particular, I like how Brian would harmonize with his delay repeats.
Any comments on multi-track guitar harmonies?

Anyone into guitar multi-tracking should also give Randy Rhoads a close listening

I forgot. Randy Rhoads did multitrack most of his parts.

Brian May was great multi-tracker some interesting stuff. Hendrix was king and only had 4 or 8 tracks. Alex Lifeson from Rush had some fun too