Locating a Bridge on a new dulcimer
Instruments- discuss specific features, luthiers, instrument problems & questions
A floating bridge is one that can be moved across the top of the fretboard. The other bridge style fits into a slot. Since you're asking I would think you're MD is set up for a floating bridge. Use your tuner to adjust it to the proper location. Tune the open note, check it at the 7th fret, if sharp, move the bridge away from the nut and repeat