Hidden within all of the 10 innovative piano solos in each volume are
scales---sometimes ascending, sometimes descending---in one or both
hands. What makes each book Not Just Another Scale Book, however, is the
accompanying recording that features wonderfully orchestrated background
tracks. Book 1 features pieces written in both major and minor keys up
to two sharps or flats. Book 2 has pieces written in major and minor
keys using three to seven sharps. The pieces in Book 3 are written in
major and minor keys using three to seven flats.