Allegro is one of the most common tempo markings used in Western classical music. It is often found in movements of symphonies, sonatas, concertos, and other instrumental pieces, as well as in operas, oratorios, and other vocal works.
The term "allegro" comes from the Italian word "allegro," which means "cheerful," "lively," or "merry." This reflects the bright, upbeat character that is typically associated with music in allegro tempo.
Allegro is often contrasted with other tempo markings such as Adagio (slow and graceful), Andante (moderate tempo), and Presto (very fast).
Here are some examples of pieces of music in allegro tempo:
1. "Allegro" from Beethoven's Symphony No. 5 in C Minor
2. "Allegro con brio" from Mozart's Symphony No. 40 in G Minor
3. "Allegro vivace" from Haydn's String Quartet in C Major, Op. 76, No. 3
4. "Allegro ma non troppo" from Bach's Brandenburg Concerto No. 3 in G Major
5. "Allegro furioso" from Vivaldi's Violin Concerto in A Minor, Op. 3, No. 6