Assertion: concerto's movement | /r/HasProperty | reconstructed in late 20th century
Facets:
Source sentences:
text: VIIg:C1), Beethoven (the F major concerto, Hess 12, of which only sketches survive, though the second movement was reconstructed in the late 20th century), and numerous other composers including Johann Christian Bach, Johann Christian Fischer, Jan Antonín Koželuh, and Ludwig August Lebrun.