Walton's works of the 1920s, while he was living in the Sitwells' attic, include the overture Portsmouth Point, dedicated to Sassoon and inspired by the well-known painting of the same name by Thomas Rowlandson. It was first heard as an entr'acte at a performance in Diaghilev's 1926 ballet season, where The Times complained, "It is a little difficult to make much of new music when it is heard through the hum of conversation."[24] Sir Henry Wood programmed the work at the Proms the following year, where it made more of an impression.[25] The composer conducted this performance; he did not enjoy conducting, but he had firm views on how his works should be interpreted, and orchestral players appreciated his "easy nonchalance" and "complete absence of fuss."[26] Walton's other works of the 1920s included a short orchestral piece, Siesta (1926) and a Sinfonia Concertante for piano and orchestra (1928), which was well received at its premiere at a Royal Philharmonic Society concert, but has not entered the regular repertory.[27]