It was an exceedingly rare keyboard, Dengi. There simply aren’t the kind of resources available that you would find for say a S900 or a PA4x.

You’ve already found out how to find the CC00/32/PC for each Tone and Drumkit, but do you have the manual with the complete Tone and DK Lists? They have all the Tones listed by name and 00/32/PC…

Roland probably sold 1000 Fantom’s for every BK9. Those are the kind of keyboards that someone goes to the trouble of creating an INS file for.

Don’t forget, if you have the KBD Part 1&2/MFX/EQ Link ON (it is by default) what you hear when you call up a UPR KBD sound isn’t JUST the bare sound, but the sound with an associated ROM MFX and possibly some EQ. So if you’re calling up Tones with your DAW, unless directed to the UPR1/2 KBD Parts, those insert effects don’t get added and the patch might sound VERY different from the sound if you call it up for UPR1/2 on the keyboard.
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An arranger is just a tool. What matters is what you build with it..!