[quote name='MiltyG565' timestamp='1363726830' post='2016736']
Piano is a classical instrument, and as such, has a strong foundation on theory. If you want to play piano, you need to learn theory, and that's it really. Rock instruments, like electric guitar and bass aren't classical instruments, and have a strong foundation in ignorance of music theory. People were told for a long time (and still are) that a theoretical knowledge isn't that important when playing rock, which is the opposite from classical instruments. And not knowing a lot about theory, and your friends not knowing a lot about theory, you have to find some way to communicate with them musically. How? Numbering the frets. It's simple and effective, and a baby monkey riding backwards on a pig could use it.
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I agree with the piano part but I don't agree that Rock is 'ignorant' of music theory. At all. I bet almost all of rock musicians know music theory, maybe not to the same level as classical players but enough to get them by. This in itself doesn't make them ignorant.