adverb / noun / adjective
allegro
uh-LEG-roh/əˈleɡrəʊ/
Music played at a fast, lively tempo.
The violinist plays allegro, keeping pace with the brisk metronome.

Etymology
The Latin ancestor describes cheerfulness and brisk energy. The musical direction applies that lively character to performance, calling for a fast, spirited tempo.
More examples
- The score directs the pianist to play allegro.
- A slow introduction leads into an allegro movement.
- The two allegros require careful control despite their speed.
Forms
allegro · allegros