I just bought the Arban book edited by Joe Alessi and Brian Bowman. I've been playing it everyday, for the sheer fun of it. I know it seems perverse, but the only books i've used before were melodious etudes and the Kopprasch, and I never was really engaged by the music in any of htem.
The arban book is just such a change that i can't put it down. also, I'm noticing instant improvement in my technical skills.
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No Worries, She'll Be Right.
--Dan Forman