Related Clues:

• Temper
• Tone down
• Soften
• Vary, as a tone
• Vary tone or pitch of
• Vary the tone or pitch of one's voice
• Vary tone or pitch of voice
• Regulate
• Adjust tone or pitch
• Change tone, pitch etc
• Vary a tone
• Bob Mould's current album
• Attune
• Adjust, as a voice
• Adjust, as pitch