Cases of word usage

1) a method of physical exercise with music (aerobics)

2) a person who acts in drama, performs music etc, for pleasure only and not professionally (amateur)

3) (an example of) a dramatic performance by dancers to music (ballet)

4) to send out (speech, music etc) by radio or TV (broadcast)

5) (an instance of) public entertainment and feasting, usually with music and processions of people in fancy dress (carnival)

6) (especially) a person who composes music (composer)

7) the act or art of composing e.g. a piece of writing or music (composition)

8) music to be played, a noise made, with increasing loudness (crescendo)

9) a person who gives judgements, especially about literature, art, music etc (critic)

10) (a series of) movements and steps in time with music (dance)