I bring the “ sound ”, tones of high frequency or range, the counterpart of bass. Treble refers to tones whose frequency or range is at the higher end of human hearing. In music this corresponds to “high notes”. The treble clef is often used to notate such notes. The frequencies generally adjusted by treble controls on audio equipment are above 2 kHz, although vocal and instrumental core tones classed as treble lines are generally lower. Treble sound is the counterpart to bass sound.