Rundkanzone

Rundkanzone [German: "rounded chanson" or "rounded canzona"] is a type of bar form (AAB form or "canzona form") originally taken from medieval German song, but also used to describe musical form in general. The form is represented by either:

ABAB/CB[1]
-or-
AABA[2]

The second part (CB) [German: Abgesang] concludes with most or all of the material (B) from each half (AB) [German: Stollen] of the double first part (ABAB) [German: Aufgesang].

German terms are retained in the discussion of bar form by music scholars because the terms were introduced by Lorenz[3] in his exhaustive investigation of the music of 19th-century composer Richard Wagner.

References

1. Horst Brunner (2000). Stanley Sadie (ed.). New Grove Dictionary of Music and Musicians. Oxford: Oxford University Press.
2. The New Harvard Dictionary of Music. Harvard: Belknap. 1986. p. 721. ISBN 9780674615250.
3. Lorenz, A. (1924). Das Geheimis der Form bei Richard Wagner. Berlin.