dear ivo,i am sorry to say but in sofia we haven't musik shop.but if you will come at hy musik academy you willfind notes and some partitur at the parter,every morning.bye for now .and about vagner-nobody understand and listen at bulgarie this kind of musik,too difucult for interprertation and playing.you can find more at Vagner fest-Bairouit.bye for now black moon,but not from debusy