Edson Tadeu Ortolan wrote:
>The tonalities of the century 17 to middles of the 18 were little:
>until four sharps (E Major) and four flats (A b Major). Theoretical
>controversies, construction difficulty and tuning of the instruments,
>and temper were the problems. Only J.S. Bach and J.Ph. Rameau ("Traite
>de l'harmonie" - 1722) advanced more. Hear:
>
>J.S. Bach: The Well-Tempered Clavier (18th century)
>F. Chopin: 24 Preludes (19th century)
If we're going w/ Chopin into the 19th century, there's also Brahms' Trio
No. 1, Op. 8.
wm