To ergo Permutationen [Antimetatheseis] gia klarineto kai kroysta, LWN 64 (1957) einai ena apo ta teleytaia erga tis protis dimioyrgikis periodoy toy Anesti Logotheti (1921-1994), dyo peripoy hronia prin na afosiothei apokleistika sti grafiki apeikonisi tis moysikis toy. Fainetai malista pos i megali allagi sta ekfrastika mesa poy hrisimopoiise o synthetis apo to 1959 os to telos tis zois toy apotelese to basiko paragonta gia na parameinei to ergo anektelesto gia perissotero apo miso aiona. I stiktografiki tehniki synthesis poy akoloythei o Logothetis sto sygkekrimeno ergo toy, syndeetai amesa me ton oliko seiraismo, o opoios eihe idi anaptyhthei pliros kata tin periodo ekeini stin Eyropi, kai einai apolytos enarmonismeni me to pneyma anazitisis neon tropon organosis ton moysikon parametron me ti boitheia tis mathimatikis montelopoiisis. Sto syntomo ayto kommati, diarkeias 3 1/2 lepton, o synthetis prospathei na eksantlisei oloys toys pithanoys metashimatismoys toy rythmoy, tis dynamikis kai tis katanomis ton moysikon organon, pano se mia basiki hroniki monada 1,33 deyteroleptoy, i opoia ypodiaireitai se metro 7/16. Epilehthikan epta typoi antimetathesis gia ti rythmiki organosi tis diarkeias ton fthoggon kai ton payseon se kathe moysiko metro, se syndyasmo me oloys toys typoys antimetathesis tis ypodiairesis tis idias hronikis monadas se pente isomeri systatika meri. Oi akoloythies fthoggon sto klarineto proilthan apo proboles diastimaton pemptis kai tetartis sygkekrimenon omadon fthoggon, oi opoies dimioyrgithikan apo tin ensomatosi dyo dodekafthoggon kyklon kai ton anastrofon toys. Ta kroysta apoteloyntai apo epta diaforetika organa: eksi basika (trigono, piato, woodblock, tampoyro, stratiotiko tympano, gkrankasa) kai ena gkongk. I diamoirasi toy moysikoy ylikoy sta eksi basika kroysta ginetai aleatorika, me epilogi 75 apo toys synolika 720 pithanoys syndyasmoys katanomis toy moysikoy ylikoy se 6 organa (6!=720). I epilogi tis dynamikis kathe fthoggoy ginetai me basi enan polyploko mathimatiko typo, ta apotelesmata toy opoioy metafrazontai me basi mia arithmitiki klimaka apo to 1 eos to 5, opoy to 1 antistoihei sti mikroteri dynamiki (pp) kai to 5 sti megalyteri (ff). Giannis Samprobalakis