do full muhanoi=do full muvt day
hien ben mu hanoi tui co 1 so do full sau: 1,do` soul full 2,kiem' rong full 3,cung cuoi full 4,kiem cuoi full 5,do` thunder full 6,ring va day chuyen full 7,tap rong full+kudul full ............ ai muon doi len tieng' nha'.vi` day la` muhanoi nen se dc doi theo ti le 1:3.nghia la` 1 mon' ben muhanoi=3 mon' ben muvt.ai thich thi` lien he,ko thi` thoi,ko ep'