▁year ▁later ▁and ▁re vised ▁in ▁ 1 8 8 7 . ▁The ▁work ▁was ▁Gr ieg ' s ▁only ▁piano ▁son ata ▁and ▁it ▁was ▁dedicated ▁to ▁the ▁Dan ish ▁composer ▁N iels ▁G ade . ▁The ▁son ata ▁has ▁four ▁movements ▁with ▁the ▁following ▁tempo ▁mark ings : ▁▁ ▁Al leg ro ▁moder ato ▁ ▁And ante ▁molto ▁ ▁Al la ▁Menu etto , ▁ma ▁poco ▁più ▁l ento ▁ ▁Finale : ▁Mol to ▁alleg ro ▁ ▁A ▁typical ▁performance ▁last s ▁around ▁ 2 0 ▁minutes . ▁ ▁In ▁the ▁first ▁movement ▁Gr ieg ▁used ▁a ▁technique ▁probably ▁most ▁fam ously ▁used ▁by ▁Bach ▁and ▁Sh ost akov ich : ▁his ▁own ▁name , ▁more ▁precisely ▁his ▁initial s ▁E - H - G ▁( H ▁being ▁the ▁German ▁name ▁for ▁note ▁B ), ▁begins ▁the ▁mel ody ▁in ▁the ▁first ▁two ▁bars , ▁which ▁is ▁re iter ated ▁in ▁oct aves ▁and ▁even ▁echo ed ▁by ▁the ▁left ▁hand ▁in ▁bars ▁ 1 4 ▁and ▁ 1 5 . ▁He ▁used ▁the ▁same ▁method ▁in ▁his ▁two ▁compos itions ▁of ▁the ▁Ly ric ▁Pie ces : ▁" G ade ", ▁Op . ▁ 5 7 , ▁No . ▁ 2 ▁and ▁" Secret ", ▁Op . ▁ 5 7 , ▁No . ▁ 4 , ▁using ▁the ▁name ▁of ▁his ▁adm ired ▁colle ague ▁G ade . ▁ ▁In ▁a ▁ 1 9 4 4 ▁letter ▁to ▁El la ▁Gra inger , ▁Per cy ▁Gra inger ▁mentioned ▁planning ▁to