This Hohner’s method is good and useful. However, there are two things that I didn’t like :

First, The printing quality is fair with two exceptions : pictures in pages 4 and 5 are rather poor and ugly, and page 17 (Lesson Four) uses a font size very small and difficult to read. Why did Hohner use a different font size only in this page ? Also, in this page 17 the printing quality is definitely poor. Given the financial resources and the excellent reputation of Honer as a company, they could have done much better.

Secondly, the D/G key frequently used in two-row accordions was not included in this method, and guess what : my two-row accordion is a Hohner Morgane D/G.

I found this book to be disappointing and difficult to use. The printing is poor quality–it looks like someone copied the pages on a copier running low on toner. Some of the type is very small and difficult to read. I expected more from Hohner.

The book is not very self explanatory. It doesn’t really show you
the pattern or names of the basis what they should be. If you
don’t know chords or music, you would be lost.