I have been teaching myself to play the harmonica since the start of the covid virus in 2019. I've never been focused enough to play a musical instrument until the 59th year of this life I'm living, but play it I do and I impress myself more than I remember impressing myself learning something new.
The thing us, I can blow single notes all day long but blowing chords is a constant struggle to make sounds like I hear others make when blowing chords. Is there a basic rule for blowing chords from the harmonica that one must know before getting it right?