> From: Good Soldier Schweik
>
> no charles,

Well, yes, because you then go on to reinforce some of the points I've made up thread!

> many players of other musics other than traditional play in closed positions, jazz is a good example and use standard tuning, ...

Yes but ...

> ... because it is overall the bestand most versatile tuning for jazz chords modulation etc.

... not particularly because they favour the sound of closed finger positions as opposed to open strings.

> english irish scottish traditional music is mainly in 4 modes and does not modulate very much it is therefore suited to open tunings and ringing strings, doubling and trebling of first and fifth notes of chords, often having an ambiguity about the sound.

Exactly. As I pointed out above, open tunings are particularly suited to such traditional material.

> jazz guitarists in the main have acompletely different harmonic approach, to players like carthy and jones

Yes, I don't think anyone here would disagree with that - certainly not myself, at any rate.