Orquesta Sinfónica de la BBC
Brosa was the soloist for the premiere performance of the young Elizabeth Poston's Violin Sonata, broadcast by the BBC on 9 July 1928, for Haydn Wood's Violin Concerto on 1 March 1933, with the BBC Symphony Orchestra, conducted by Joseph Lewis, and also for the first performance of Arthur Benjamin's Violin Concerto (1932) on 5 January 1934 with the BBC Symphony Orchestra, conducted by Adrian Boult.