This is the 8310th most frequent Japanese word.
弾か
It appears "弾か" is not a standalone word but may be part of a conjugated form of "弾く" (to play or pluck an instrument, or to repel).
In this sentence, '弾き' (hiki) is derived from the verb '弾く' (hiku), meaning 'to play a musical instrument,' and is used to refer to the action of playing the piano.
ピアノの弾き方を教えてください。
Please teach me how to play the piano.
Here, the verb '弾いた' (弾く-conjugated) means 'to deflect or bounce,' demonstrating its use in a physical action context.
彼はボールを弾いた。
He deflected the ball.
In this context, '弾く' conveys the action of performing a piece of music on an instrument, showing a broader application related to musical performance.