For that C6 standard tuning, it's great for learning the left and right hand techniques, and still sound very capable. The basic reason is that it's a good tuning with 2 octaves (top 4 strings are tuned 1 octave apart the bottom 4 strings).
Alternatively, just drop this tuning down 4 notes to A6 (C -> B -> Bb -> A), for a little different sound (looser strings). The strings are tuned with the exact same relative notes as C6, so anything you learn in C6 you can play in A6.
Recently, I switched to an E tuning, which has a Root-3-5-1 relative tuning. Orville has some great advice on playing alternate tunings - where you search for the same relative notes on strings in the new tuning (like R-3-5). It helps.
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Mark Tomlinson
mark@careytomlinson.org www.careytomlinson.org
[This message was edited by Mark Tomlinson on 05 October 2006 at 08:44 PM.]