 His London debut was on 8 May 1890, at a Royal Philharmonic Society concert, in Schumann's Piano Concerto in A minor.He performed it again in London on 12 June, and on 17 June in a concert for Hans Richter he played a Brahms Rhapsody, sharing the platform with Marie Fillunger (1850–1930), lieder singer and intimate of the Schumann-Joachim circle.He also played the Brahms D minor concerto, which George Bernard Shaw called 'a hash of bits and scraps with plenty of thickening in the pianoforte part, which Mr Leonard Borwick played with the enthusiasm of youth in a style technically admirable'.