key change

I am working on Autumn Leaves. I want it to be in the key of G. It doesn't have that option - it only had minor keys available and it's transposing for trumpet. I play guitar and I'd like to have the piece in the key of G. Thank you.

We jazz players have 2-5-1's all over the place. It's often easier to think of a 2-5-1 (or similar changes) as being in a temporary new key. Case in point: Blue Bossa: Measures 5 through 8 are a standard 2-5-1 in the key of C minor. Measures 9 through 12 are shown in number font as b3-6-b2...

It would be nice to have a "key" marker. Just the same way as there is a meter marker,, a key marker would be great. I have a song in the key of C minor. Then, a key change going half a step up. When transposing to different keys, I end up with a mix of chords with sharps and flats (because...

Wondering if a few options are available, and I'm just missing them. When I pull up a song, just prior to playing it, if I go to the section that enables me to change the key, from that point on in playing it, it will climb a half step at the conclusion of each verse. I wondered is there a...

Any way to indicate a change of key, such as a modulation from one flat to two flats? Or is a player simply to infer a new tonal center from the chords? Thanks in advance.