It's that it...the notes and anti notes change. there's a key which says that C is sharp and F is sharp...but after a couple of bars C is not sharp. the first time C is not sharp, B is flat, then C is not sharp again, but this time B is natural. I can play it, and I can hear it, but I don't really understand why C# becomes an anti note when it's in the key signature. And where does Bb come from? that's not in the key signature either, but B is wrong, even though that is in the key signature.
Thanks for your reply.
ok, we have a better idea now of what you mean.
firstly, in using the term "anti notes" I think you mean accidentals. these are notes in a melody which arent in the key signature.
these will be found in all kinds of music, not just in Jazz standards such as Satin Doll.
they will usually be found when a composer wants to go into another key temporarily, before coming back to the original key.
having a key signature ( such as the D major for tenor in Satin Doll ) is the composers way of telling us as players what key it is in. It doesnt mean that every note in the tune MUST be/remain in that key.
the composer can go wherever he wants ( its his/her tune after all !! ) So to cater for that need, he/she may need to write an accidental.
ie he is thinking in D major but suddenly his artistic voice tells him that he really wants to hear a C natural.
Does he fight this urge for a c natural.... No.... he really wants it. so, he writes it.
This means that if as players, we want to be true to his composition, we have to follow his wishes and go where he tells us.
there is no choice. If we want to play it correctly, we HAVE to play his notes.
So, we learn to understand and recognise accidentals. We read it and play it as he / she wrote.
hence the need to just accept the written notes in front of us.
This can be done without understanding the theory behind the internal /temporary key changes. But we must develop an understanding of the "Why" in relation to accidentals.
However, in relation to Jazz/improvisation, a little understanding of this key changing idea can help, for certain.
a simple explanation would be that most western music doesnt stay in one key for its entire form.
whatever the original key centre, it would be the norm for it to temporarily go to a different key.
the correct term for this would be to say that it MODULATED to a new key.
the exception to this structure would be modal music , which tends to stay on a particular key for longer periods, without modulation. an example of this would be the tune SO WHAT, from Kind of Blue, which stays in a Dorian minor key centre for extended periods.
anyway, thats a different topic/answer, and we wont go there.
So, as an improvisor trying to play over the chord changes to satin doll, there a few options.
1) stay/play in the key of D major for 8 bars
2) try to follow the changes in key centre as they occur and play the "correct notes "
the 2nd option is harder to do well, and in fact in many instances it can lead to the improvisation being stilted and somewhat technical correct, but lacking.
The 1st option can be looser, more natural , but can sometimes have note clashes etc which sound not so good.
As improvisers develop/get better, they tend to go more towards the 2nd option.
So, for example over the 1st 2 bars you can play in D major, the next two bars in E major.
you talk about Bb and C natural. You must mean in relation to bar 6. Here it goes into Ab major for only one bar.
I told you this can get tricky !!, before moving back to D major.
In this Ab bar, you can be accurate and try to play some brain bursting complicated stuff in semi quavers for 4 beats. or you could play a C natural for 4 beats. it would be "correct".
As an improvisor, the choice is yours.
As an improvisor, much of the secret is to recognise where the key centre/harmony "IS' at any given time and having the technical stuff in your brain and under your fingers to enable you to negotiate these temporary key changes.
My main practice focus is in trying to improve in this area. Its hard !!