Clarinet Concerto no. 1 in C minor (Music Minus One), Op 26
taken from the Music Minus One intro:
Includes a high-quality printed music score for Bb clarinet and a digitally remastered compact disc containing a complete version with soloist, then a second recording of the orchestral accompaniment, minus the soloist; and a second compact disc featuring the complete version again, followed by a -20% slow-tempo accompaniment for practice purposes.
Difficulty level, roughly compared to ABRSM exam grades. 0 is beginner, 9 is advanced (beyond grade 8).