這些調(diào)弦可以讓吉他手彈出開放七, 九, 十一,或十三和弦.These tunings allow a guitarist to play an open seventh, ninth, eleventh or thirteenth chord.但這些調(diào)弦是一種介于開放式調(diào)弦與變化調(diào)弦之間的調(diào)弦.But these are in kind amiddle ground between standard Open Tunings and A...