treble
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The higher range of musical pitch, or the treble clef that notates it.
The treble refers to the upper portion of the musical range, as opposed to the bass (lower range). The treble clef (also called the G clef because its spiral wraps around the G line) is the most commonly used clef, notating the range used by most instruments and voices — violin, flute, oboe, trumpet, guitar, and soprano and alto voices.
In audio engineering, treble refers to the high-frequency component of sound (roughly 2,000–20,000 Hz). The treble control on an amplifier or equaliser adjusts this range. In choral music, the treble voice refers to a boy soprano — an unchanged male voice that sings in the soprano range. The term comes from the Latin triplum, the highest voice in medieval three-part singing.