Re: [Harp-L] Just what exactly is 'key'?

[sheltraw@xxxxxxxxxxxx]

Hi Arthur

> Where a key signature is given, it should indicate the overall key of a
> piece.

My real book gives a key signature of C for Impressions. My Hal Leonard
Jazz Favorites book gives a key signature of F.

The tune has only two chords Dm7 and Ebm7. Ebm7 isn't a diatonic chord built
from either of the keys indicated by the Real Book or the Hal Leonard
book. The melody over the Dm7 is definitely built around D dorian mode
whereas
the melody over the Em7 is built around E dorian. Is Hal Leonard book wrong.

Some folks say that there is no necessary relationship between "key" and
"key signature".