sense of sound, pitch

(slang) pistol; gun / tiddlywinks

to flick and make something spring/jump / (of materials) to reject; to repel (some external substance) / (from the metaphor of beating beads of an abacus) to calculate

play (a stringed or keyboard musical instrument)

It would be good if~

(music) a piano

extraordinary, unusual

emergency

very; extremely / exceedingly; tremendously

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend