I will try to answer this. when playing a Bowed Psaltery to get harmony you would be using two bows that would only produce two notes. So I guess if you wanted to add harmony you would find the note that adds color to the melody. Does this make sense? Anyone else who might be more succinct than myself please chime in.
another idea, listen to the videos posted on this website to give you ideas on how harmony is incorporated with the Bowed Psaltery.
Evelyn is right. You can't play true chords on a bowed psaltery (unless you can figure out how to incorporate a third bow : ). However you can get beautiful harmonies by using a second bow. The bowed psaltery is more of a melody instrument unlike guitar and others where you can do chords and sing along.
I'm thinking you are combining two different terms. Chords vs. notes. In your questions you refer to the 1st verse chords, which have some 7th chords. As in some of the replies, you can bow with 3 and 4 bows to get the triad chord and the 4th bow to add the 7th. BUT... The question I am reading is "would love to learn to play it" tells me maybe you need to learn to play the melody first. What you are seeing on your music is the chords not the notes. If you are going to sing it than yes, playing (droning), some of the notes of the chord will create an awesome harmony to you singing the melody. The notes you are seeing on the BP are just that, NOTES... not chords.. Hope this helped a little bit..
Yes we can help you !!!!!! The "Notes" that make up a "G" chord are G, B, and D. The 7th of the G scale is F# so to make a "G7" chord you need to add the F# to the sound. So on the BP, if someone else or you are singing the melody, and you have two bows I would play either the B or D with my right hand and play the F# with my left.. It all depends on what notes are being sung in that measure as to what notes you would play to harmonize to the melody...