J.S. Bach: Little Preludes And Fughettas (Kleine Praludien und Fughetten). Composed by Johann Sebastian Bach (1685-1750). Edited by Rudolf Steglich. For Piano (Urtext). Henle Music Folios. Edition without fingering. SMP Level 9 (Advanced). Softcover. 60 pages. G. Henle #HN1106. Published by G. Henle (HL.51481106).
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.