pound out

phrasal verb

pounded out; pounding out; pounds out

1

: to make or produce (something) quickly especially by pounding (such as on a keyboard)

Every week he pounds out another column for the newspaper.

2

: to play (a song, melody, etc.) loudly on a musical instrument especially by pounding (such as on a piano)

The band's lead singer was pounding out a tune on the piano.