Frederic Chopin
Chopin's etudes are largely in straightforward ternary form. He used them to teach his own technique of piano playing--for instance playing double thirds (Op. 25, No. 6), playing in octaves (Op. 25, No. 10), and playing repeated notes (Op. 10, No.  7).
What form are most of Chopin's etudes in?
straightforward ternary
Chopin's etudes are largely in straightforward ternary form.
Chopin's etudes