However this sharpness indicates that the 1973 model did not yet have poly-cylindrical bore technology.This clarinet is most appropriate for: Intermediate to advanced musicians.

Update after testing # A30271: The newer model plays very similarly, only about 10 cents sharp on low B-flat and A.

This particular instrument is flatter on low A and mid-E because of a replaced tone hole. Any flatness is due to my playing loudly for the test. I normally would be flatter than this with such a long barrel.