I also adore the Liszt transcription of BWV 543.
Yeah, it is a great piece. Honestly, I will mostly likely start working on this piece soon. I had learned it years ago when I wasn't really ready for it and just played through it for fun. I would love to learn it again and have a more legitimate go at it.I don't know if it is 'well-known' to a lot of general concerto goers, but I would imagine it is fairly well-known to pianists and performers. It is in that kind of weird area of regular but not so regular. So, hard to say. However, I have noticed many more pianists (even big names) playing it on recordings over the past several years, so it must be somewhat well-known (also correct me if I'm wrong).Unfortunately, I feel like other great transcriptions are pretty neglected, like the fantasy and fugue in G minor that Liszt transcribed. Trifonov has a wonderful rendition of it on youtube (from a performance) and a few recordings of it exist out there, but it seems to be very rare (and I love this piece and it's amazing differences in the fantasy and fugue). Beyond that, I feel that many Stradal transcriptions are never played (or recorded to be more accurate). Until Vikingur Olaffson played the movement from the Organ Sonata No.4, I had never heard that piece before. I also find a wonderful transcription of the Organ Concerto in A minor that Stradal transcribed (in which Bach had transcribed from Vivaldi). To my knowledge, this has only ever been recorded 1-2 times and if hard to find. I also have a hard time finding performances of it on the internet. And then everything Godowsky did...rare.Well, that was a bit of a tangent. It would be great if some of these lesser known gems popped up more often.-KC