Related Clues:

• One striking a chord
• Perfectionist maybe disposing of uranium to key operator
• Musician right into tango is lively
• Player of instruments interpreted disco hit, right?
• Musician like Lang Lang, Alfred Brendel, Fats Domino or Oscar Peterson
• Musician's ear, say, is tested, initially
• Church keyboard player
• Musician utilizing many keys
• Player who pulls out all the stops?
• One sitting on the bench, maybe
• Ivory tickler
• Might one wish to warm fingers up in scaling of Mount Sinai, perhaps?
• Rating so shocking for player
• Jamming pedal pusher?
• Musician roasting when playing