I have a curved yanagisawa and it sounds great. Can some one tell me which model this is, it is not a sc901. It has straight palm keys like the selmer mark vi. It has a more curved neck than the curent 901 and i think it is 17 years old. It has hand engraings on the bell. also i have a problem with a spitty sound that stops the air flow every 10 minutes for a couple of seconds.