Diabelli 11 Sonatinas for the Piano, Op. 151 and 168
Schirmer Library of Classics Volume 266 Piano Solo. Composed by Anton Diabelli (1781-1858). Edited by L Klee. Piano Collection. Sonatina, Classical. Softcover. 60 pages. G. Schirmer #LB266. Published by G. Schirmer (HL.50253900).
This title has selections that range in difficulty from SMP Level 5-6.
About SMP Level 6 (Late Intermediate)