Hello Dieter !
Since the A-190-3 will have an USB port and a LCD it would be a great addition to be able to load microtuning files ( Scala )

Info about the format here : http://www.huygens-fokker.org/scala/scl_format.html

http://www.huygens-fokker.org/scala/help.htm#mappings

99,9 % of scl files already created ( around 4 000 ) weight less than 1 ko so maybe a small memory to keep the ones you use in the module.

Also it depends of the numbers of characters displayed in the LCD since some file names can go up to 20 characters max ( but very few of them )

Thanks for considering !