Sought-after tenor James Gilchristexplores the repertoire of GermanLieder by contemporaries ofSchubert, and adds Schubert’slate song with obbligato horn ‘Aufdem Strom’. The main works in theprogramme are Felix Mendelssohn’sA minor Quartet, with its echoes oflate Beethoven, and Schubert’sB flat Trio, a work of buoyant lyricism.