Minor 7th - Major 6th

Here the relationships are absolutely identical. Notice that for instance, Am is the relative minor to C and C is the relative major to Am. It works out that for any Major 6th, the chord tones are exactly the same as the relative m7th. So, Am7 equals C6, and etc. down the list. Want to make a minor or a m7th run? Just think the Cmajor scale. Its'notes are the same as the notes in the Am (pure) scale. So, use a C scale to create runs against C, Cmaj7, C6, or Am, Am7,or Am9. When you learn any major scale fingering you also have the relative minor right under your fingers. (rd)

Am7 = C6
Bm7 = D6
Cm7 = Eb6
Dm7 = F6
Em7 = G6
Fm7 = Ab6
Gm7 = Bb6