Root : A♭
Minor 3rd : B
5th : E♭
A♭m/E♭
A♭m/B
A♭m
Banjo is tuned to D / F# / A / D
A♭m/
In music theory, a minor chord is a chord having a root, a minor third, and a perfect fifth. When a chord has these three notes alone, it is called a minor triad.