Some bassoons have been specially made to allow bassoonists to realize similar passages. The bassoonists "show virtually no bassoon vibrato up to the 1950s". He played with two jazz bassoonists&colon; Paul Hanson and Michael Rabinowitz. Camden was also one of the first bassoonists to experiment with recording. The IDRS grew out of a 1969 newsletter for bassoonists compiled by Gerald Corey.