og ue ▁( i . e . ▁with ▁distinct ▁numbers ▁of ▁be ats ▁and ▁sub div isions ) ▁the ▁terms ▁vary ▁by ▁region , ▁genre , ▁and ▁music ian ▁groups . ▁We ▁mention ▁the ▁tal am ▁cycles ▁and ▁sub div isions ▁as ▁we ▁deal ▁with ▁each ▁genre , ▁using ▁the ▁name ▁most ▁commonly ▁mentioned ▁by ▁the ▁mus icians ▁of ▁that ▁genre . ▁ ▁Ker ala ▁per cussion ▁gen res ▁k sh et ram ▁v ady am ▁and ▁other ▁Indian ▁music ▁systems ▁ ▁There ▁has ▁been ▁some ▁confusion ▁about ▁how ▁to ▁categor ize ▁the ▁many ▁Indian ▁music ▁systems . ▁The ▁widely ▁used ▁great - l ittle ▁trad itions ▁dich ot omy ▁( gre at ▁for ▁" class ical " ▁and ▁little ▁for ▁local ▁or ▁" folk " ▁systems ) ▁or ▁– ▁their ▁Indian ▁variation ▁– ▁marg i - des i ▁sang it ▁- ▁seems ▁un su itable ▁to ▁be ▁forced ▁upon ▁Ker ala ' s ▁mus ics . ▁Many ▁criteria ▁for ▁the ▁' gre at ▁trad itions ', ▁like ▁professional ▁status ▁and ▁training ▁of ▁the ▁mus icians , ▁could ▁be ▁applied ▁to ▁the ▁majority ▁of ▁the ▁k av u ▁and ▁k sh et ram ▁musical ▁gen res . ▁Ker ala ▁mus ics ▁– ▁like ▁Indian ▁mus ics ▁in ▁general ▁– ▁consist ▁of ▁complex ▁and ▁inter related ▁trad itions , ▁established ▁on ▁a ▁sec ular – s ac red , ▁and ▁canon ised – less ▁canon ised ▁continu um , ▁performed ▁by ▁professional , ▁semi - prof essional ▁and / or ▁amateur ▁mus icians .