If you would have used the Key Signature instead of the Roman Numerals, there could be no such confusion and I do recommend that you use the keysigs rather than the Roman Numerals in your thinking, as that won't paint you into a corner later on.

Besides that, we don't really use the Roman Numerals in Jazz notation nor descriptions. It is far more common to use the Arabic numbers there. A 2m, for example.

The Guitar neck can make these things both more confusing and less confusing both at the same time. *grin*

Working with the piano at the same time as the guitar is a very good idea, can open up the world of guitar playing where far too many start out by memorizing dot patterns on the neck grid without paying enough attention to things such as which actual note is being played at a certain time, leaning on fretcount schemes to shift basically the same pattern around rather than working out the scales and modes from within the one position, things like that, which can open up an entirely different world for the guitar player wishing to really get into the art and science of improvisation.

Improvisation is really nothing more than Composing on-the-fly.


--Max