 The vocal range of singer Heidi Mollenhauer, who provided Esmeralda's singing voice in lieu of actress Demi Moore, spans two octaves, from F3 to C5.Transposed to the higher key of E♭ major, Midler's vocal range also spans two octaves, from B♭3 to F5.While Mollenhauer's version spans three minutes and forty-five seconds, Midler's rendition of "God Help the Outcasts" lasts a shorter length of three minutes and twenty-six seconds.