Her voice a transparent gossamer of silk.” “Hers is an instrument that can shape sound and syllable, making it the messenger of every articulation whether it is a whisper, an ululation or a prance on the edge of a scream.”
-All about Jazz, US
“Capable of producing sustained lines of the utmost purity, wild ululations and the occasional melodic line that simply disappears off the treble clef, Pettersen’s voice is an instrument of extraordinary flexibility.” “one of those powerful emotional jolts that really stirs the soul.”
-The Arts Desk, UK
“In live perfomances one is struck by the flow of Sissels improvisations. The sounds and tones just seem to pour out of her, each more daring than the next.
She makes screams, squeeks and noises dance over rythmic patterns as pirouettes on ice, while stretching time to it´s very limit.”
-Lira Music Magazine, Sweden