Summary: Learn how to play key changes for jazz guitar with improvisation in this solo guitar lesson on video, with jazz music tips & techniques.
Casey Cormier has been playing both the guitar and bass for ten years, performing in rock and roll clubs along the New Jersey Coast as well as in New York City. He studied jazz at the...read more
"CASEY CORMIER: Even though we have key signatures in jazz music, the important thing is that jazz very rarely you stay in the same key. So we know in our excerpt of a song here, melody, we start off in the key of E flat major; and it's going to claim that the key signature is not going to change. It's going to keep claiming that we're there, but the chord changes will tell us differently. So E flat major makes a lot of sense, that's part of it. But a B flat would have to be a dominant 7th chord in an E flat major type of thing because with this minor 3rd in here, now we have a D flat all of a sudden. And now, of course, we lead to an E flat 7, a dominant, which implies that we're in the key of A flat major. Okay? And that's where we end up. So, here we're in, we start off on the first measure in E flat major, then we turn around, and with this turn around, these two measures including the A flat major 7 are in the key of A flat major 7 though, which is only a note off but it it's important. Okay? Now, A flat minor 7, obviously were not on A flat major 7 anymore. A flat minor 7 and D flat 7 imply that we're in the key of G flat 7, but we are only then there for one bar. So here we are. Okay? So now we have to start thinking about what modes we're going to use, and that's something we'll look at in a second."
eHow Article: Key Changes: Jazz Guitar Improvisation