Thanks for your interest in this project. The "final" version was submitted to Sikorski Musikverlag in early September. Prof. Moser let me know at that time that they have at least looked at it. I have not heard from them since that time. Considering the plethora of publications on instruction and methods for the accordion, I have little confidence in it actually reaching the market. Due to copyright restrictions on the original material, I would not be able to submit it to another publisher.
After 10 years of work, I submitted a draft version directly to Sikorski in the summer of 2018. They put me in contact with Prof. Moser. She has been very involved in reviewing and critiquing the content. I did not submit the final version until everything had met her requirements. She is particularly enthusiastic about the changes to the presentation of the diagrams from the original version. In the English version, the diagrams present both the left and right hands as if the musician were viewing the instrument in a mirror. Also, if the student were to lay their hands on the diagrams in the book, they would be in the same orientation as if they would be on the instrument.
I picked up a copy of Prof. Moser’s book from an obscure music store in Washington, DC, sometime in the late 1990’s. The book is still available from different vendors in Europe and the U.S. The diagrams were useful, but the text was inaccessible, particularly since I had not read, written, or much less spoken German in 40 years. I am not a professional musician or academic. However, as a software engineer for over 40 years, I developed a style of clear and concise writing style for documentation. Prof. Dr. Paul De Bra and Tony Grieco on this forum have reviewed this document. They are both in agreement that the material seems dry and academic (they should see the original German) and that it may be more appropriate for an instructor for presentation to a student rather than for someone trying to learn on their own.