Note 1 — BEETHOVEN'S LETTERS.
Grace Wallace translation
[Footnote 1: The novelties which Beethoven sends to the Archduke are:--
Six bagatelles for the pianoforte, Op. 126 (composed in 1821). Sonata for pianoforte in E major " 109 ( " " ?1821). " " " A flat major " 110 ( " " 1821).
]