ton·al /ˈtonḷ/
  (a.)音調的,音色的,色調的
  tonal
       adj 1: employing variations in pitch to distinguish meanings of
              otherwise similar words; "Chinese is a tonal language"
              [syn: tonic]
       2: having tonality; i.e. tones and chords organized in relation
          to one tone such as a keynote or tonic [ant: atonal]