Allegro is one of the types of musical “moves”, ie the time, speed at which a song or part of it will be performed. Traditionally, the terms are used in Italian, which is a kind of “universal language” of music. Thus, "allegro" or cheerful indicates a faster tempo (speed) song, as opposed to a "walker", which would be a comfortable and paced "walk" or a "moderato" (moderately). There are dozens of other musical moves, such as broad, bass, vivace or presto.
As the distance of the pole is less than the distance of the equator from the center of the earth, the force of attraction is higher on the body at poles than at the equator. Hence the weight of a body is greater at pole than at the equator
