hi
im new but upon reading that its a yamaha i just thought id say that all yamahas are made sharp so be prepared to pull out:
also,this is something that noone has pointed out yet is your headjoint hole in line with your first key
that can often put you REALLY out of tune.
play someone elses instrument to suss out weather its you or your flute.
also what climate do you play in
it may affect it
and take care to make sure that your flute isnt broken.!
hope this helps
and i apologise for my spelling.and just to let you know im really sorry but my keyboard has no punctuation exept for full stops. im getting it fixed i apologise for the lack of question marks ect!
PP
PP

Some Yamahas are made with a different scale than others (A-444 compared to A-440, but these changes are available only in the uper level Yammies), but it's inaccurate to say that they are made sharp. You may have difficulty playing them in tune, but there are plenty of people that don't (including me). Even flutes with the poorest scales can be played in tune by a competent musician. As for the embouchure hole being put in the middle of the C key, that is a suggestion used by many teachers for a *starting place* of how to position the headjoint in relation to the body. By no means does it need to be followed. Some people will play like that, but many play with the head rolled either in or out, and can still play beautifully (and in tune). As far as I can figure out, climate should not have any effect on the pitch of a flute. It may cause pad or cork problems, which could affect tone, but the climate will not alter the size or placement of the toneholes.

Well yes, temperature does change it a little bit, but I was referring to a well warmed-up flute with relatively stable temperature. If you pull your flute out of the case on the coldest day of the year, straight off the tuning will be a bit different, but as it begins to warm up, the tuning will return to normal. I assumed (and that was my mistake) that we were discussing a flute that has already been played for a bit, because you are not going to get the best out of an instrument (and certainly will not be able to accurately remark on intonation tendencies) until it has gone through an appropriate warm-up.