Berlioz to Gemmy Brandue (London, 1 Jun 1853)

... Bottesini also had a brilliant success performing with his usual inconceivable skill a new contrabass concerto of his own composition, really remarkable, pleasant and well instrumented. ...

Source: Bibliothèque Nationale, fonds du Conservatoire, env. 4, no. 222

Published in: Correspondance Générale de Berlioz pp321-2 Berlioz refers to the concert of 30 May 1853, of which he conducted the first half. Bottesini performed an unidentified concertino (in g or f# minor?) in the second half of the programme, which was conducted by Costa. .