[4] The choir took part in pioneering projects, such as the concert premiere of Arnold Schoenberg's opera Moses und Aron.

He conducted in 1967 the premiere of Ligetis Lux aeterna for a cappella choir in a series das neue werk (the new work).

[3] Premieres included Pendereckis Utrenja, Henze's oratorio Floß der Medusa which caused a scandal, and Stockhausen's Atmen gibt das Leben.

[1] The choir recorded all a cappella work by Johannes Brahms,[2] conducted by Hamburg's Kirchenmusikdirektor Günter Jena, who studied the program from 1981 in around half a year of daily rehearsals.

He achieved more transparency in the sound, following historically informed performance of Baroque music, but conducting works by Reger and Bruckner with the same intention.

[6] Ahman conducted a festive program on 19 April 2010, of Bach's motets Singet dem Herrn ein neues Lied, BWV 225, and Der Geist hilft unsrer Schwachheit auf, BWV 226, Fest- und Gedenksprüche and Warum ist das Licht gegeben by Johannes Brahms, Knut Nystedt's Immortal Bach and Arvo Pärt's Sieben Magnificat-Antiphonen.

[4] The conductor and composer Eric Whitacre organized in 2012 a sing-along project, SINGING!, in Hamburg, which has become an annual institution, connecting hundreds of singers with the NDR Chor.