A. S. in Memoriam was written in 1999, in memory of Arnold Schönberg and his string composition Verklärte Nacht, composed a hundred years previously, in 1899. In A. S. in Memoriam I have sought to mirror the vocabulary, gesture and musical characters present in the works of Schönberg. A. S. in Memoriam is often performed and has been on tour to Japan with both Gothenburg Symphony Orchestra/Neeme Järvi and Royal Stockholm Philharmonic/Alan Gilbert.
A. S. in Memoriam was originally composed for 15 strings (5-4-3-2-1, op50a) but also exists in a version for string orchestra (op50b). The smaller version was commissioned and premiered in 1999 by the Lund New Chamber Orchestra under Sören Nilzén. The larger version is dedicated to Neeme Järvi, by whom it was premiered in May 2001 with the Gothenburg Symphony Orchestra at the Gothenburg Concert Hall. Bar 49 features a musical quotation from Verklärte Nacht, as a sounding acknowledgement of that work's influence on A. S. in Memoriam.