Tune of the Day: Allegro by Bach
The Sonata in G minor, BWV 1020, is traditionally attributed to Bach, but it is almost certainly not a work by J.S. Bach; it may, however, have been composed by his son C.P.E. Bach. The originally intended ensemble seems to be flute and harpsichord, but the work is commonly performed on both flute and violin. Anyways, this is an elegant piece of late-Baroque chamber music, and it is not put to any shame by the six unquestionably authentic flute sonatas by J.S. Bach.
The opening movement of this sonata presents no tempo indication in Urtext editions, but it is generally considered to be an Allegro. The entirety of the opening theme is given to the harpsichord as a solo; when the flute enters some bars later, the music briefly takes on a more spacious form, but soon the energetic theme creeps back in.