sound off

verbs

express one's opinion openly and without fear or hesitation

"John spoke up at the meeting"

animadvert, opine, sound off, speak out, speak up

start playing

"The musicians struck up a tune"

sound off, strike up

express complaints, discontent, displeasure, or unhappiness

"My mother complains all day"; "She has a lot to kick about"

complain, kick, kvetch, plain, quetch, sound off