Multi-word verbs in music (homework)

to persuade somebody to reduce the price of something (informal)

(knock somebody down / over) to hit somebody and make them fall to the ground

(knock something down) to destroy a building by breaking its walls

1. I managed to knock him down to $400.
2. As hard as you try, no I will never be knocked down, "Turning tables" Adele
3. These old houses are going to be knocked down.