Wah-wah (music)

Wah-wah (or wa-wa) is an imitative word (or onomatopoeia) for the sound of altering the resonance of musical notes to extend expressiveness, sounding much like a human voice saying the syllable wah. The wah-wah effect is a spectral glide, a "modification of the vowel quality of a tone".

Ultimate-Guitar opined that the effect is "one of the most original and easily identified guitar effects in the world."

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