Minnie Riperton
photo: epic records · public domain ↗A Chicago native who trained in opera as a teenager while singing backup for Chess Records artists and fronting the psychedelic soul group Rotary Connection, Minnie Riperton became famous almost overnight in 1975 for a five-octave range capped by an extraordinary whistle register. She released only a handful of albums before her death at 31, but Lovin' You alone was enough to make her the direct technical forerunner for every pop singer who would later reach for that same superhuman top note — Mariah Carey most explicitly.
As a teenager Riperton sang backing vocals for Chess Records blues artists including Muddy Waters, absorbing the label's electric blues foundation firsthand before she ever cut a record of her own.
listen forHoochie Coochie Man rides on Chess's raw, guitar-and-groove blues backbone; Riperton's own Adventures in Paradise keeps that bluesy rhythm section underneath her far more ornamented vocal.
Riperton's whistle-register range invites direct comparison to Sumac, the Peruvian vocalist whose multi-octave recordings decades earlier remain the clearest technical precedent for that kind of extreme upper range in popular recording, though it isn't documented as a direct, self-cited influence.
listen forSumac's Virgin of the Sun God treats the voice as a soaring, wordless instrument reaching for notes far above normal singing; Riperton's own whistle-note peak on Lovin' You is the pop-song version of that same technique.
Riperton grew up in a 1950s-60s Chicago where gospel and blues shared the same cultural air, Jackson's included; that churchy vocal reach surfaces in the soaring, ad-libbed outros she'd add to otherwise pop-soul arrangements.
listen forMove On Up a Little Higher climbs and climbs on pure vocal power; Riperton's Reasons closes out on a similar extended, improvised high-register run.