[Harp-L] All this Positions and Modes stuff

[Aongus Mac Cana]

I have to admit that I know as much about music theory as "a dog knows about
a wireless". However I am trying to pick it up on a "need to know" basis.

Question #1:      Can you use the terms 1st 2nd and 3d positions for a
Chromatic harmonica?

In other words on a C Chromatic is G 2nd D 3d. and A 4th. (and on a G
Chromatic would D be 2nd and A 3d.)

Some Irish Trad players use the terms: 1 sharp 2 sharps and 3 sharps to
describe the keys of G,D. And A. With this system I guess F would be called
1 flat?

Question #2:      As regards modes are these simply defined by where you
start your scale on the piano keyboard while confining yourself to the white
keys?

Hoping that someone may indulge an ignoramus,

Beannachtai

Aongus Mac Cana