ival ▁are ▁the ▁piano ▁son at as , ▁especially ▁the ▁innov atory ▁first ▁( 1 9 0 9 ) ▁and ▁the ▁intr icate , ▁way ward ▁third ▁( 1 9 5 6 ). ▁The ▁largest ▁body ▁of ▁successful ▁work ▁is ▁to ▁be ▁found ▁in ▁his ▁chamber ▁music , ▁the ▁Clar inet ▁Quint et ▁and ▁T rio ▁and ▁the ▁five ▁viol in ▁son at as ▁being ▁especially ▁notable . ▁ ▁The ▁years ▁ 2 0 0 4 – 1 0 ▁saw ▁an ▁extraordinary ▁flo od ▁of ▁record ings , ▁including ▁ 4 ▁CD s ▁of ▁his ▁orch est ral ▁music ▁( with ▁the ▁BBC ▁Phil harm onic ▁under ▁Mart yn ▁Bra bb ins ), ▁his ▁complete ▁piano ▁music ▁played ▁by ▁Les lie ▁De ' A th ▁on ▁D utton , ▁and ▁record ings ▁of ▁four ▁of ▁his ▁viol in ▁son at as ▁by ▁Cla re ▁How ick ▁and ▁Soph ia ▁Rah man . ▁His ▁Har ps ich ord ▁Con cer to ▁received ▁its ▁premi ere ▁recording ▁in ▁ 2 0 1 1 ; ▁the ▁solo ist ▁was ▁Michael ▁La us , ▁who ▁also ▁conducted ▁the ▁Mal ta ▁Phil harm onic ▁Orchestra ▁for ▁C ame o ▁Class ics . ▁Live ▁performances ▁have ▁been ▁r ar er , ▁though ▁the ▁two ▁m ature ▁sym phon ies ▁( now ▁number ed ▁ 3 ▁and ▁ 4 ) ▁received ▁premier es ▁in ▁Manchester , ▁the ▁first ▁in ▁ 2 0 0 3 ▁and ▁the ▁second ▁in ▁ 2 0 0 5 . ▁ ▁The ▁most ▁recent ▁recording ▁is