Related Clues:

• Like musical instruments
• On the same wavelength
• Practiced before playing
• Tightened some strings?
• Ready to be played
• Signaled
• Perfectly pitched
• Not flat at all
• Nudged
• Gave lines to
• Threw a line
• Got into pitch
• Pitched properly
• Adjusted the radio knob
• Gave the finger to an actor?