Both fast movements contain trills and brilliant semiquaver passagework. The exposition ends with a semiquaver cadential theme. This amounts to twice the value of the sixteenth note (semiquaver). The "Vordersatz" is answered by a four bar phrase of semiquaver motifs in sequence. The primary feature is the staccato semiquaver bass. The bass line incorporates the semiquaver scales. This new musical material is matched by the semiquaver figures of the woodwind. The semiquaver motifs occasionally and briefly pass to the continuo part. The Martinsyde Semiquaver was a British single-seat racing biplane built by Martinsyde in 1920. A brief 5 bar coda reprising the imitative semiquaver scales leads into section "B". A busy semiquaver figure runs through the dance-like piece, interrupted only by the cadences. They are "appoggiaturas" or "semiquaver" notes, or "Caciaturas" or demi-semi-quaver notes, which predominate.