"Three years ago, Boris Blacher's piano music was a new discovery for me," says Swiss pianist and composer Manuela Keller. "It's lean style, it's unconventional rhythm and barren beauty appealed to me immediately and inspired me to dedicate the second Idee manu [album] to him. He left a large oeuvre comprising almost all musical genres and also had an interest in jazz all his life. He developed a 'system of variable metres' to berak musical form and rhythmic symmetry with numerous, arithmetically structured metre changes. Krebs, Sberk, Dugong and Prelude 16 are typical examples of this technique." Those are four out of 16 compositions that Manuela Keller got her teeth into, both as a soloist and in a quartet. Three are written by Keller, the other ten are adaptations, some more subtle, others more extensive, of models from Blachers late 24 Preludes for piano, his piano cycle Ornamente, and his Second Sonatina. Thus, Idee manu's second album fits perfectly into the programmatic line of Between the Lines, focusing on sound projects crossing styles and genres between improvisation and composition.