Related Clues:

• Muscular condition
• Tuning fork's output
• Goblet-tapping sound
• Instrument quality
• Metallic sound
• Coloration
• Sound of thunder or laughter
• Concern of a musician or bodybuilder
• Tenor
• Body shop concern
• What calisthenics improve
• Thunderclap
• Distinctive quality
• Strengthen, with 'up'
• Voice nuance