Related Clues:

• Muscle or musical quality
• A kid may be told to watch it
• Vocal quality
• The sound of music
• Firm up, as muscles
• Work on one's muscles
• Vocal pitch
• Dial ___ (phone sound)
• Character of sound
• Tone quality
• Cosmetologist's concern
• Voice-mail cue
• Work on, as abs
• Word after dial or earth
• Prevailing character