I haven't tried this tuning, but I already have questions. If you play noter style in DF#A tuning, your drone is a major chord, D major. This works if there are no minor chords in the song, but what happens when the song contains both major & minor chords? The third note of the chord(F#,here) defines the chord as major or minor. The I/III drone is a clear major chord. The I/IV or DA drone is an ambiguous neither major nor minor drone that can be used for either major or minor. Why? Exactly because of this ambiguity. It's neither, but contains the notes common to both. A "D" chord consists of D,F# &A. A Dm consists of D, F & A. The flatted F natural makes it a minor chord. I say flatted because the scale in D doesn't use an F natural, it uses F#, so F natural is flatted from the note that occurs in the scale. Dm doesn't belong to this key.Using DF#A tuning for chord style playing makes sense to me, as it gives you a chromatic scale, which at least in theory, lets you make all the chords you may need,if the chord notes are within reach from the melody note you need at a give point in the song. Again, I haven't yet tried this tuning, but the idea intrigues me. I may be playing with it shortly.Paul