Hello every one,
I am currently puzzled by the Red Clay's score in the Real Book that starts in the key of C-. The tune is on different versions (Freddy Hubbard original in the studio, live, with VSOP, ...) played in Db-, no idea where a C- version comes from.
You're right--Red Clay is in Db minor (C# minor). That's the original key that Freddie Hubbard plays it in. That's also the key you'll find it in the Jamey Aebersold Freddie Hubbard Volume 60. However, because this is a difficult key for many horn players it is often played in C minor at jam sessions. That's why you find it in C minor in the Real Book. You should learn the tune in both keys because if you call it at a jam session the other players may only know it in one of these keys--and you don't want to get stuck transposing on the spot--especially if you're the one that called the tune! It's a great soulful melody and the changes are deceptively simple to solo over. Enjoy!