In music theory, what does 'allegro' indicate about the tempo of a piece?

The term 'allegro' indicates that a piece of music should be played at a fast tempo. It is commonly used as a tempo marking in musical scores, suggesting a lively, cheerful pace that typically ranges from around 120 to 168 beats per minute. The connotation of 'allegro' is energetic and brisk, which aligns with its traditional use in compositions to evoke a sense of motion and excitement. Understanding this term helps musicians interpret the intended speed of a piece, enhancing the performance's expressiveness and character. Knowing the distinction between terms such as 'allegro' and others like 'largo,' which means slow, or 'moderato,' which denotes a moderate tempo, allows players to accurately convey the composer's intentions.