music

1. theater

1.1. actors

1.2. a curtain viewers scene applause

1.2.1. accompaniment

2. headphones

3. mood

3.1. sad

3.2. happy

4. dancing

4.1. ballet hip-hop brakedance waltz

5. tact key work size notes

6. rock classic jazz blues literature

7. piano guitar violin accordion clarinet saxophone

8. loud

9. musical instruments

10. music staff

10.1. genre