Little Preludes and Fughettas (Piano Solo). Composed by Johann Sebastian Bach (1685-1750). Edited by Rudolf Steglich. For Piano. Piano (Harpsichord), 2-hands. Henle Music Folios. Pages: 59. SMP Level 9 (Advanced). Hardcover. 56 pages. G. Henle #HN107. Published by G. Henle (HL.51480107).
This title has selections that range in difficulty from SMP Level 8-9.
About SMP Level 9 (Advanced)
All types of major, minor, diminished, and augmented chords spanning more than an octave. Extensive scale passages.