Hi, Derek!

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What I find different about yours is the key you chose, I have played it in at least 3 other keys but never in the key of 'A', most unusual, I don't know why but I find lots of musicians seem to shy away from 3 sharps yet they have no problem with 3 flats....peculiar.
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Perhaps, you going to be 'surprised', if I'll tell you that the REAL key I'm playing this song is F SHARP MAJOR. And this is true... I attracted by a SOFT sound of this key.
I explained a whole thing to you at a "Tango" section.
Having a button accordion, I don't have to worry about an amount of sharps, flats and naturals. I call it, actually, ALTERATIONS.

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Thanks for your nice comments on the Tangos...
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You bet, Derek! I enjoy it, I really do!

Be happy.
Kombrig.