sangeet roll

sangeet roll ack bhandaran madhyam haye jiska upayog ack yaantrik sangeet vaadyayantra koo sanchaalit karane key liye kiya jaataa haye. inca upayog khilaadi piano, yaantrik anga, electronic carylan aur vibhinn prakaar key orchestrian key liye kiya jaataa haye. adhikansh sangeet roll kagaj seey baney hotey hain. jinn anya samagriyon kaa upayog kiya gayaa haye, unamen patali card (aaee. aim. aich. oh. aff.-system), patali sheet peetal (telectra-system), mishrit bahu-stariya vidyut-pravaahakiya aluminium aur pepper roll (trist-system) aur aadhunik yug mein, patali plastic yaa paltu film shamil hain.
sangeet detta chhidron key madhyam seey sangraheet kiya jaataa haye. yantra kaa tantra inhen ack vaayaviya, yaantrik yaa vidyut samvedan upkaran kaa upayog karke roll key roop mein padhata haye jise tracker baar kahaa jaataa haye, aur tantra baad mein upkaran koo bajaata haye.
ack roll khelane key baad, ise phir seey khelane seey pahale ise phir seey bajaana aavashyak haye. isake liye sangeet pradarshan mein ack viram kii aavashyakta hoti haye. iss samasya koo door karane key liye, kuchh upkaranon koo dou khilaadi tantron (ack duplexes roll tantra key roop mein sandarbhit) key saath banaaya gayaa thaa, jisase ack roll koo khelane kii anumati milati haye jabaki doosara rewind hotaa haye. 
piano roll ack vishisht prakaar kaa sangeet roll haye, aur ise player piano yaa punarutpadan piano jaise swachaalit piano koo sanchaalit karane key liye design kiya gayaa haye.

