Tell me more ×  Our band's saxophonist has a bizzare
intermittent fault with his soprano sax (so normally uses his
tenor or alto sax).  Sometimes it's fine and sings beautifully,
but other times it'll be out of tune by between a major third
and a fourth. It's a Bb instrument, so when he plays C we should
hear Bb but we were hearing something between Eb and E.
Normally he tunes by pushing the mouthpiece further on or off,
but this is beyond the range he can achieve that way.  We had a
close look at all the keys along the sax, and couldn't see
anything that was blocked or anything out of place.  We'd like
to fix this beautiful instrument (rather than work around the
problem by tuning to Eb), but can't think what to try next.
What are the possible causes for it to go so far out of tune?
share|improve this question In the ed we took it to a guy who
repairs & maintains woodwind instruments for some very
pretigious orchestras. He said it was badly made and would cost
less to replace than fix! –  AndrewC Mar 31 a