The model numbers SD20, SD80 and SD90 were modules named Edirol, made by Roland. I owned two of these. Is it possible you mean those?

If you do mean Ketron is the manufacturer, then to use these or any other hardware MIDI synth in BIAB and gain access to the upper bank of patches (beyond GM and GM2) then you need a Patch Map. There are many already written in the Support, Patch Map area of this site, although the model numbers of the Ketron units do not match your post.

Click on Support near the top of this page to see what has already been done, or go here: https://www.pgmusic.com/support_miscellaneous.htm




BIAB 2024 Win Audiophile. Software: Studio One 6.5 Pro, Swam horns, Acoustica-7, Notion 6; Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus Studio 192, Presonus Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors