Hello there!
Well i had been wondering, what software usually people use to transpose into shamisen notation?
I need to get some Christmas songs 
and haven’t found any notation, so seems i need to transpose 
any help are always welcome:revolving_hearts:
Hi. Musescore ! There is a beta version for shamisen. You will find a link somewhere in the forum !
Hello. I use Frescobaldi, the GUI for Lylipond. You should include the addon written by Paul Battley for shamisen notation. You find It on GitHub or on his blog po-ru.com
Here’s a direct link: https://github.com/threedaymonk/lilypond-shamisen
I’ve been using lilypond with the shamisen add-on “shamisen.ly.” It is text based but with the program Frescobaldi you can see what you are doing and it’s been pretty simple to use once I got the hang of it