Terry,
I do this real easy on the i30 in what is called a BSQ mode on the i30 and I have all the functions available. It's just like playing live. I can use the buttons to change the variations, ritard, fills and so on and so forth while I'm playing the sax live.
Every time I do the tune I can do it with a different variation, a different fill and on some styles a different intro and ending. It doesn't get so monotonous having to play it exactly the same way everytime.
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I'm not prejudiced, I hate everybody!! Ha ha! My Sister-In-Law had this tee shirt. She was a riot!!!