By Len Vogler. For Keyboard. Sheet Music and Audio CD. 32 pages. Published by Music Sales.

By Len Vogler. Book. Published by Music Sales. (AM946924) The ultimate compact reference book of keyboard scales. Over 220 scales, in all twelve keys for all keyboardists presented in standard notation and easy-to-read diagrams with fingering notation and pivot points.

Basix Scales, Chords and Arpeggios for Keyboard by Willard A. Palmer, Morton Manus, and Amanda Vick Lethco. For Keyboard; Piano. Keyboard/Piano. Basix® Series. Book and CD. 72 pages. Published by Alfred Music Publishing