1) Answering machine signals 2) Answering-machine sounds 3) Appropriate anagram for notes 4) Chimes 5) Chromatic nuances 6) Color gradations 7) Color qualities 8) Color wheel choices 9) Color wheel display 10) Colorings 11) Colors 12) Colors or sounds 13) Contents of a musical scale 14) Demitints 15) Dial sounds 1) Hues 
A series of two or three musical notes, used as an auditory alert over a radio or radio-paging system to indicate that a particular fire company, district, or territory is dispatched to service on a particular incident.
Refers to the strength of grays between white and black. It relates to the brightness, lightness and darkness of the subject and is determined by illumination
Refers to the strength of grays between white and black. It relates to the brightness, lightness and darkness of the subject and is determined by illumination. 
A series of two or three musical notes, used as an auditory alert over a radio or radio-paging system to indicate that a particular fire company, district, or territory is dispatched to service on a particular incident.
colors obtained by adding gray to the hue of a color.