falsetto

falsetto
    adj 1: artificially high; above the normal voice range; "a
           falsetto voice"
    n 1: a male singing voice with artificially high tones in an
         upper register
    

high-pitched \high-pitched\ adj.
   1. high in pitch or frequency; -- used of sounds and voices.
      Opposite of {low}. [Narrower terms: {adenoidal, pinched,
      nasal}; {altissimo}; {alto}; {countertenor, alto};
      {falsetto}; {peaky, spiky}; {piping}; {shrill, sharp};
      {screaky, screechy, squeaking, squeaky, squealing};
      {soprano, treble}; {sopranino}; {tenor}]

   Syn: high.
        [WordNet 1.5]

   2. set at a sharp or high angle or slant; as, a high-pitched
      roof.

   Syn: steeply pitched, steep.
        [WordNet 1.5] high-power
    

Falsetto \Fal*set"to\, n.; pl. {Falsettos}. [It. falsetto, dim.
   fr. L. falsus. See {False}.]
   A false or artificial voice; that voice in a man which lies
   above his natural voice; the male counter tenor or alto
   voice. See {Head voice}, under {Voice}.
   [1913 Webster]
    

77 Moby Thesaurus words for "falsetto":
      alto, aphonia, artificial voice, baritone, bass, bourdon, bravura,
      broken speech, broken tones, broken voice, burden, chest voice,
      childish treble, choked voice, choral, choric, coloratura,
      countertenor, cracked voice, croak, crow, dramatic, drone,
      drone bass, dysarthria, dyslalia, dyslogia, dysphasia, dysphonia,
      dysphrasia, harshness, hawking voice, head register, head tone,
      head voice, heroic, high, high-pitched, high-sounding, high-toned,
      hiss, hoarseness, hymnal, idioglossia, idiolalia,
      impairment of speech, lisp, lisping, liturgical, loss of voice,
      lyric, male alto, mezzo-soprano, muzzy speech, nasal tone,
      nasalization, operatic, psalmic, psalmodial, psalmodic, quaver,
      sacred, shake, sibilation, singing, soprano, speech defect,
      speech impediment, tenor, treble, tremor, twang, vocal, voce,
      voce di petto, voce di testa, voice