Why do some people here prefer the earlier solo cello suites (RCA/Seon, 1970s) by Anner Bijlsma to his later set (Sony, 1992)? I've not heard either (I have the Pablo Casals, Pierre Fournier, Jaap ter Linden and Pieter Wispelwey sets), but I've read a few reviews and the majority prefer the more recent set. The earlier set was described as having a more academic interpretation and a sometimes "severe", "wooden" or even "sour" tone, while Bijlsma was said to have a better instrument, a freer interpretation and a more natural tone, and to play better on the later set.