But they aren't available on YouTube (only inferior pastiches) - and in searching I stumbled across the Swingle's version of the first movement from Brandenberg 3 - which is an absolute joy. Some of the effects of this delighful arrangement (e.g. from 1:00 is A-Mazing) make clear aspects of the texture and harmony that had previously passed me by in the 100s of times I've listened to this piece:
The Swingles were almost as much of a 60s/70s phenomenon as Carlos (indeed I join them by association with their contemporary Glenn Gould, who was a great fan of both); and they had a remarkable range of styles, such as this lyrical gem:
Note: The presiding genius founder-arranger Ward Swingle is standing on the extreme right - singing tenor.