30 Progressive Studies, Op. 46 (Complete) (Piano Technique). By Stephen Heller (1813-1888). For Piano. Piano Method. SMP Level 9 (Advanced). 64 pages. G. Schirmer #LB177. Published by G. Schirmer (HL.50253260).
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.