Related Clues:

• Hearing-test bits
• Start of a musical series
• Music sounds
• Phone sounds
• Scale beginning
• Improves muscles
• Considers, in a way
• Sounds or colors
• Firms up, as muscles
• Start of the musical scale
• Steps on the scale?
• Gradations of color
• Money, musically
• Told about the silly ass
• Measures for arcs and angles