chance to go out; opportunity to succeed
Refers to a timely moment or opening to go out or to seize an opportunity. Often used in set phrases like 出端を失う (miss the chance to go out) or 出端をくじく (spoil someone's start).
It started raining and I missed my chance to go out.
musical accompaniment for an actor's entrance
Technical term in traditional Japanese theater (kabuki, etc.) for the music played when an actor makes an entrance.
You shouldn't say something that will spoil his start.
In kabuki, music is played to accompany an actor's entrance.