I initially contacted Jeff because I was interested in finding a Claude Gordon trumpet. I was working out of the CG method on my own for A few months beforehand and after I was able to acquire a CG trumpet with the help of Jeff, He offered to give me lessons. My progress has increased tenfold with weekly lessons with a teacher who is well versed in the CG method. There is only one way to play a brass instrument correctly and with proper development and patience, anyone can learn to play correctly and not only that, but attain a range of double high C and beyond. If anyone is serious about learning to play a brass instrument, I highly recommend Jeff!