The Barcode Quartet is led by vocalist Annette Giesriegl, based in Graz, Austria, who brings her studies of overtone singing, throat singing and Indian music to jazz and improvised music.

Alongside her are London based improvising violinist Alison Blunt and pianist Elisabeth Harnik of Styria, who represent a generation of improvisers who didn't come to the discipline via jazz. Graz based Josef Klammer's drums and electronics add punctuation and colour, providing the musical glue to the ensemble. The CD is made up of live recordings in Austria in July 2011.

Personnel: Annette Giesriegl (voice), Alison Blunt (violin), Elisabeth Harnik (piano), Josef Klammer (drums, electronics)