This is what Chopin did to prepare his students for the etudes (only his most advanced students were given the etudes):
1. Scales and arpeggios (always with thumb over)
2. Clementi Etudes (both his “Gradus ad Parnassum” and the “Preludes and Exercises” especially no. 1 in Ab)
3. Cramer “Etudes”
4. Moschelles op. 70 and op. 95 (apparently he especially liked those)
These studies were worked out in every possible way: Slow, fast, legato, staccato, forte, piano, etc. The aim was equality and delicacy of touch without feebleness.
5. J. S. Bach – WTC (usually he prescribed individual fugues), and the Suites and Partitas. (In his own words, “Practise Bach constantly - this will be your best means to make progress”)
6. Scarlatti sonatas.
7. Hummel
8. John Field’s works (Nocturnes, Concertos, Sonatas, etc.) and his own Nocturnes. (Apparently he genuinely liked Field)
9. Beethoven sonatas and Concertos
10. Mendelssohn – the G minor concerto and the SWW
11. Schubert – Landler, Waltzes and four hand music
12. Weber: Sonata in C (op. 24 ) and in Ab (op. 39)
13. Liszt – Only his transcriptions of Rossinis’s Tarantella and of the Sextet in Lucia (But Chopin did not really like this sort of piece)
14. His own works.
Best wishes,
Bernhard.