Answer:

tones

Answer	Crossword Clue
TONES	Foundation options
TONES	Shades of color
TONES	Hews

TONES	Colorations
TONES	Color variations
TONES	Vocal qualities
TONES	See 49-Across
TONES	Shapes up
TONES	Musical pitches
TONES	Shadings
TONES	Shades

TONES	Scale composition
TONES	Pitches
TONES	Staff notes?
TONES	Steps on a scale
TONES	Hues
TONES	Chromatic nuances
TONES	Color wheel display
TONES	Pastels

TONES	Answering machine signals
TONES	Color wheel choices
TONES	Sounds
TONES	Dial sounds
TONES	Color or coloratura variations
TONES	Steps on a scale?
TONES	Colorings
TONES	Musical sounds

TONES	Firms (up)