The five works presented here, all in premiere recordings, were initiated by the Duo Imaginaire and given their world premiere performances in 2012/13. A quinary structure arises through the shared relationship of the five composers to the German federal state of Westphalia. Nonetheless, the composers could hardly differ from each other more, in both style and character. From melancholia and jocular high spirits to dramatically explosive outbursts, these works offer new forms of expression that take this rare sonic combination to the limits - supported by new playing techniques and effects.