▁challeng ing . ▁Son ata ▁no . 3 ▁has ▁become ▁particularly ▁ren owned ▁and ▁is ▁the ▁subject ▁of ▁a ▁chapter ▁in ▁Man uale ▁di ▁storia ▁della ▁ch itar ra . ▁ 2 : ▁La ▁ch itar ra ▁nel ▁v entes imo ▁secolo ▁by ▁Gian ni ▁N uti . ▁ ▁Del p ri ora ' s ▁most ▁recent ▁composition ▁is ▁the ▁ 3 5 ▁minute ▁set ▁of ▁variations ▁on ▁Fernando ▁Sor ' s ▁Op us ▁ 2 4 , ▁# 1 . ▁The ▁scope ▁of ▁this ▁work ▁is ▁un pre ced ented ▁in ▁the ▁guitar ▁re per toire , ▁at ▁twice ▁the ▁length ▁of ▁Brit ten ' s ▁No ct urn al ▁the ▁closest ▁equivalent ▁must ▁be ▁found ▁in ▁the ▁piano ▁re per toire ▁e . g . ▁R zew ski ' s ▁variations ▁The ▁People ▁United ▁Will ▁never ▁be ▁De fe ated . ▁Del p ri ora ▁writes : ▁" In ▁the ▁tradition ▁of ▁Mario ▁Cast el nu ovo - T edes co ’ s ▁' Vari ations ▁à ▁travers ▁les ▁siè cles ', ▁Ast or ▁Pia zz ola ’ s ▁' H istoire ▁du ▁T ango ' ▁and ▁Argent o ’ s ▁song ▁cycle ▁' Let ters ▁from ▁Compos ers ', ▁I ▁have ▁taken ▁an ▁historical ▁view ▁of ▁composition ▁for ▁my ▁' Vari ations ▁on ▁a ▁Th eme ▁by ▁Sor '. ▁This ▁new ▁set ▁of ▁variations ▁follows ▁Sor ’ s ▁little ▁Menu et ▁in ▁c ▁minor ▁op . ▁ 2 4 ▁N ° ▁ 1 ▁as ▁it ▁makes ▁its ▁ep ic ▁journey