Grandfather's Clock - Accordion Solo

I made a score for "Grandfather's Clock", with an accordion solo.
The slash mark on the score indicates a chord button, and the + sign indicates the opponent base.
How to write accordion notation is not unified.
For that reason there are scores of different ways of writing.
I will look for various ways to write the most easily.
Distribution of music sheet and blog ⇒ http: //music-labo.jpn.org/
Rs Music【music-labo.jpn....
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