Assertion: woodwind instrument's solo | /r/HasProperty | written for clarinet
Facets:
Source sentences:
text: Attempts were made to standardise to the B♭ instrument between 1930 and 1950 (e.g., tutors recommended learning routine transposition of orchestral A parts on the B♭ clarinet, including solos written for A clarinet, and some manufacturers provided a low E♭ on the B♭ to match the range of the A), but this failed in the orchestral sphere.