Chas,
You are absolutely right. Cole Porter once said "The secret to being a good musician is practice. You must practice, practice and practice. And, when you think you have practiced enough, practice more!"
One of the things I've done for many years is try to learn a new song every week of the year. At the end of the year you will have learned 52 new songs. Keep in mind these are not really new songs, but songs that you have not performed during your normal routine. This type of diversity will keep you in front of the music keyboard and away from the PC's keyboard, which is a good thing.
Good luck,
Gary
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Travlin' Easy
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)