Hearing a symphony through the prism of chamber music may be a rare opportunity in 2023, but when Beethoven penned his Fourth Symphony in 1806, this would have been how many people heard it first. A mysterious, brooding Adagio opens, eventually giving way to a triumphant Allegro. The slow movement then contrasts a smooth, long-lined melody with a military-style march rhythm. After a rumbustious Scherzo punctuated by a slower Trio, Beethoven rounds things off with a Finale of Haydn-esque playfulness. His Piano Trio No 7 of 1811 meanwhile is symphonic in size and conception with its four (rather than the usual three) movements. A noble, spacious and often richly textured Allegro leads to a Scherzo, begun by strings alone, whose carefree lilt gets interrupted by a darker, fugal Trio. A lyrical Andante follows, ending on a cautious question, quickly answered by the multi-faceted final rondo.