tem·po 
/ˈtɛmpoʊ/ noun
/ˈtɛmpoʊ/ noun 1 plural tem·pos also tem·pi : the speed at which a musical piece is played or sung [count] ▪ The song has a slow/fast/upbeat tempo. [noncount] ▪ The composition has many changes of tempo. — compare rhythm; see also up-tempo 2 plural tempos : the speed at which something moves or happens : pace [count] ▪ We walked at a fast tempo. ▪ The tempo of the game slowed down. [noncount] ▪ The dance starts out fast and then switches tempo.
