gradual tempo change
/ˈɡrædʒuəl ˈtɛmpoʊ tʃeɪndʒ/
noun phrase
-
A slow, smooth increase or decrease in the speed of a piece of music.
B2countable
- "The song has a gradual tempo change near the end."B1
- "The conductor used a gradual tempo change to build tension before the final movement."B2