Mark Andre's …auf… is a triptych of three independent orchestral pieces written between 2005 and 2007. Heard together they form a cycle, like a three-part altarpiece, and each part starts afresh the search for new resonances and for transitions between sounds. This recording, by the SWR Sinfonieorchester Baden-Baden und Freiburg under Sylvain Cambreling, was placed on the German Record Critics' quarterly list of best recordings in 2015.

Andre is a French composer, born in Paris on 10 May 1964. He studied at the Paris Conservatoire from 1987 to 1993 with Claude Ballif and Gérard Grisey, among others. After further study at the École normale supérieure, he wrote a master's thesis on the Ars subtilior in 1994. He then worked with Helmut Lachenmann in Stuttgart from 1993 to 1996. The live electronics of the third part are realised by the Experimentalstudio des SWR in Freiburg. The disc is an SWR production, with booklet notes by Lydia Jeschke.

…auf…1 (2005/06) opens on a sustained, spherical string sound. Short impulses invade it: harps played with plectrums, cellists and bassists tapping the bodies of their instruments, trumpets whistling, horn players striking their mutes with the palm. The piece lives on the contrast between a short attack and its long resonance and fading. In …auf…2 (2007) two pianos first exchange short events rich in accent and colour before the orchestra joins. Harmonic, inharmonic and noise sounds are set side by side, moving into metallic, technical and sometimes surreal regions.

…auf…3 (2007) expands the percussion to six players placed around the audience, with a sampler keyboard on stage and loudspeakers surrounding the hall. The electronics follow a precise plan of which orchestral sounds are reproduced from which loudspeaker. A convolution program joins the attack of one instrument to the resonance of another, so a drumbeat can ring like a piano or a pizzicato become a held flute tone. Using this process was pioneering work for the engineers and the composer at the time. The piece was premiered at Donaueschingen on 21 October 2007 by the same orchestra and conductor, and received the orchestra's prize there. At over twenty minutes it is also the longest of the three.

CD, Wergo WER 7322 2, released in 2014.