incidental music

音标发音

Forgive me to use this sad incidental music. I know you will say that word already. But, it's my best feeling of this time.
原谅我用这么悲伤的歌曲吧，我知道你可定还得说那句话，但是只有这样才是我最好的感觉。
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Fashion show is a comprehensive art form The incidental music, which is used in fashion show, are specially composed or selected for fashion show and therefore an inalienable part of this art.
服装表演是一门综合性的艺术，服装表演中的音乐是指为服装表演制作或选配的音乐，是这门艺术的组成部分。

Since the day Shakespeare died, people have been adapting his work to their own time by writing incidental music for the plays.
NPR: Barenaked Ladies Meet Shakespeare
The production of "As You Like It" that opens at the Stratford Festival in Ontario tomorrow night features incidental music by the Grammy-nominated band.
NPR: Barenaked Ladies Meet Shakespeare
Wolfgang Mozart didn't just write pretty incidental music for the court, Jane Austen didn't just write love stories and Bonnard didn't just paint pretty flowers, bowls of fruit and tabletops.
FORBES: Magazine Article

music that is played during a film, broadcast, or film to create a particular mood

In a film, play, or television programme, incidental music is music that is played to create a particular atmosphere.