The March of 11 Ostriches Whose Names Can Only Be Guessed
Guitars 2 and 3 弹concert pitch (写作8vb，低八度弹奏)，Guitar 1弹高一个八度（写作8va） 也就是说：把guitars 2 和 3当作普通吉他来弹奏（也就是听起来低一个八度)，把guitar 1 当作另一个高音谱号乐器来弹，弹的时候高一个八度。
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As the creator of Hub Guitar, Grey has compiled hundreds of guitar lessons, written several books, and filmed hundreds of video lessons. He teaches private lessons in his Boston studio, as well as via video chat through TakeLessons.