- An ace
- Dab hand
- Familiar with
- Knowledgeable person
- Maestro
- Master
- Prima donna
- Expert
- Genius
- Great teacher
- Italian, 'Master'
- Male conductor's title
- Music master plays at Rome's ruins
- Music master plays at Rome’s ruins
- Ivory-tickler
- Key player
- Keyboard player
- Martha Argerich, for example
- Steinway virtuoso
- A performer, esp. a skilled performer, on the piano.