Mark Elder, conductor; Stephen Hough, piano; Robert Chen, violin; Jan Vogler, cello. DELIUS: A Song of Summer; RACHMANINOFF: Piano Concerto No. 4; SIBELIUS: Symphony No. 6; WEBERN: Five Pieces for Orchestra, Op. 10; BRAHMS: Concerto for Violin and Cello in A minor, Op. 102; WEBERN: Five Pieces for Orchestra, Op. 10.