Clarinet 1 in Bb Clarinet 2 in Bb Clarinet 3 in Bb Bass Clarinet Unlike the other keyboard Toccatas, BWV 916 is clearly in 3 movements and the first movement is an ideal opener for concerts. It alternates ritornello and tutti sections, and this arrangement (not totally a transcription) works well for the clarinet ensemble. Although there are some passages that are not identical to the original, the harmonic profile of the original has been retained.