What does 'allegro' suggest about the tempo of the music?

The term 'allegro' is an Italian word that is widely recognized in music terminology as an indication of tempo. Specifically, 'allegro' suggests that the music should be played quickly, generally at a lively and cheerful pace. It typically denotes a tempo range of approximately 120 to 168 beats per minute, which contributes to an energetic and bright character in the music. This understanding of 'allegro' is fundamental in music interpretation, as it informs performers about the desired speed and mood of the piece they are playing. Thus, when a composer marks a section of music with the term 'allegro', it conveys a clear expectation for a brisk and spirited performance, making the correct answer evident.