Assertion: concerto's performance | /r/HasProperty | first known
Facets:
Source sentences:
text: It received its first known performance in May 1808, and was published in 1807 in Vienna, yet it had already been anticipated in 1802 by fairly substantial sketches for a work in D, calling for the same team of soloists.
text: It received its first known performance in May 1808, and was published in 1807 in Vienna, yet it had already been anticipated in 1802 by fairly substantial sketches for a work in D, calling for the same team of soloists.