The choir's five Schütz recordings, conducted by Hennig between 1982 and 1999, set standards for performances of this repertoire; four of them won prizes such as the Deutscher Schallplattenpreis.
The Knabenchor Hannover was among the first choirs to take an interest in historically informed performance and achieved international acclaim.
Conductors such as Gustav Leonhardt, Ton Koopman, Alan Gilbert, Ingo Metzmacher and Christoph Eschenbach regularly work with the choir, as do ensembles such as the Amsterdam Baroque Orchestra, the Akademie für Alte Musik Berlin, London Brass and many German symphony orchestras.
In 2000 the choir celebrated 50 years with a recorded performance in Hannover of Bach's St Matthew Passion together with the Thomanerchor.
In 2009 Harald Weiss dedicated his requiem composition Schwarz vor Augen und es ward Licht to the Knabenchor Hannover, premiered on 31 October 2009 with the NDR Symphony Orchestra and soloists Dorothee Mields and Andreas Karasiak.