countermelody

Noun

(music) a secondary or supplemental melody played simultaneously with the primary melody.

Japanese Meaning

主旋律と同時に演奏される、補助的または二次的な旋律

The pianist added a delicate countermelody that wove around the main theme, enriching the piece without overpowering it.

ピアニストは主旋律の周りを織りなすような繊細な対旋律を加え、曲を圧倒することなく豊かにした。

Sense（1）

(music) a secondary or supplemental melody played simultaneously with the primary melody.

countermelodies

（ plural ）