A question concerning autoharps.... Does someone out there know which strings should be open and which ones should be dampened on a standard 15 cord harp? I just bought a used harp and have been trying to learn how to play...If I press and hold the cord bar as shown in the sheet music, some of the strings I need to play are not active... I'm wondering if someone changed the felts to some custom profile... I would be interested in a layout for each cord bar to check my instrument too....

Thanks!!