Mensural notation recoverable from the modern text. While 19th and early 20th century editions of Renaissance music often preserved the large note values of the originals, including breves and longs, most modern editions will use scaled-down note values in order to match modern reading habits regarding tempo and beat structure. For 16th century music, a frequent scheme is diminution by a factor of 2 (i.e., rendering semibreves as modern minims), in a modern "alla breve" bar. Older music might be diminished by a factor of 4 (rendering semibreves as crotchets) or sometimes 8 (rendering breves as crotchets). For 13th-century pieces, diminution by
Concerti grossi, Op. 6 (Handel) seventh concerto is the only one for full orchestra: it has no solo episodes and all the movements are brief. The first movement is a "largo", ten bars long, which like an overture leads into the "allegro" fugue on a single note, that only a composer of Handel's stature would have dared to attempt. The theme of the fugue consists of the same note for three bars (two minims, four crotchets, eight quavers) followed by a bar of quaver figures, which with slight variants are used as thematic material for the entire movement, a work relying primarily on rhythm. The