The playing of music proved to be incidental to the main business of the evening.
音乐演奏结果只是当晚主要活动的陪衬。
《柯林斯英汉双解大词典》
2
Forgive me to use this sad incidentalmusic. 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。
3
Fashion show is a comprehensive art form the incidentalmusic, which is used in fashion show, are specially composed or selected for fashion show and therefore an inalienable part of this art.