Heini Kärkkäinen and Jaana Kärkkäinen

Kaipainen : Ladders to Fire Op.14 - Concerto for two pianos : II Emotive expansion

Kaipainen : Ladders to Fire Op.14 - Concerto for two pianos : I Passionate polarities

Kaipainen : Ladders to Fire Op.14 - Concerto for two pianos : III A-F; Sequential solutions