William Mathias was one of the most significant and prolific Welsh composers of the 20th century. His flexible and highly approachable style can be heard in the holiday mood of the Suite Parisienne, the brilliance and lyricism of the Capriccio for flute and piano and the wonderfully rhapsodic Sonata for Harp. Mathias's songs are among the most communicative settings of their kind, including Pan Oeddwn Fachgen ('A Dream of Youth'), considered by the composer to be 'one of the finest lyrical poems in modern Welsh.