The Gypsy scale is a minor scale with raised fourth and seventh degrees. Write the notes of this scale beginning on D

All of the following played piano in a Miles Davis ensemble except

a. Herbie Hancock. b. Chick Corea. c. Keith Jarrett. d. Tony Williams.

What is a possible letter name of the note marked with an "x"?

A. Ab B. Gb C. B# D. Bb E. C