expression, ichidan verb
join in a musical performance; play along with music
Used when someone plays or sings along with an ongoing performance, matching the tempo and key.
ピアノの演奏に合わせて、みんなで歌った。
We all sang along with the piano performance.
彼はギターで、私の演奏に合わせてくれた
He played along with my performance on the guitar.