The curtains opened as the music reached a crescendo.
当音乐到达高潮时,大幕拉开了。
2INCREASE IN ACTIVITY, FEELINGS ETCif an activity or feeling reaches a crescendo, it gradually becomes stronger until it is very strong 〔活动或感情的〕高潮,顶点SYN climax
The campaign reached its crescendo in the week of the election.