Drop D Tuning and the Pep Band Guitar

From standard tuning, tune the low E string down one whole step to D

Strings tuned in order are DADGBE

Play the tuba part and instantly be a pep band guitar player. 
Once you have mastered drop D, move on to harder chording.
Take lessons, learn all your chords and join Jazz Band.

See www.cyberfret.com for more on Power Chords and Drop D Tuning