You can get blank 21-bar chord bars from Elderly Instruments and make any chords you want. Click here to get to Elderly's site, type "autoharp" into the search box and then click on "accessories" in the next window. I noticed that they carry premade chord bars for some of the more common chords, but no Bm or F#m. If you don't want to make them up yourself you might talk with someone there about special ordering.

Bruce