Yamaha Custom Clarinet CX A/B♭ Set The B♭ clarinet is a Shimokura original, and because it has joint rings, it produces a more robust sound than the standard CX. The pads are skin pads because I prefer a soft tone. There is some discoloration of the keys, but I think they will become clean if polished. Both clarinets have been adjusted for intonation and tone, so you should be able to play them without difficulty. The CX is a lower-priced model among the custom clarinets, but it is easy to create a core sound, and I think the sound will reach the back of the hall. Thank you for looking.