It's in almost every bluegrass song, but I've never seen an exposition of the theory behind the major chord (minor may also be used, but I don't think I've seen it) built off of the flat 7th of the ...
1) I did some reading saying 2nd, 4th, 6th and 7th note are unstable note. where 7th note tends to move towards the tonic and it is the most unstable note. Is it true? When I play through the scale, i ...