Possible Clues:

• Note that you've got it right
• Like a good-sounding piano
• Like good pianos and engines
• Prepared the pitch and square with a French top dressing
• Correctly pitched or adjusted
• Adjusted a radio or engine
• Correctly adjusted
• "In came a fiddler . . . and –– like fifty stomachaches" (Dickens)
• Some music daughter arranged for reception
• Ready to play, you might say