The Pianoist dewd is talking about moving the notes that make
up the harmonic and Melodic scale up so that they become the
Natural Minor scale again. To the guitarist, I don't think he
means move the entire scale up one fret, just the notes. Here's
what I think he means.
C Melodic Minor Scale
e:--------------------------
b:--------------------------
g:--------------4-5---------
d:--------3-5-7-------------
a:--3-5-6-------------------
e:--------------------------
The Mistake of the Pianist is that you move the notes down a step
to make them Minor again. See when you move the 7 on the D string
and the 4 on the G string down one fret it becomes the minor scale.
C Natural Minor
e:--------------------------
b:--------------------------
g:--------------3-5---------
d:--------3-5-6-------------
a:--3-5-6-------------------
e:--------------------------
It's the same on the Piano.
"My whole life is a dark room...ONE BIG DARK ROOM" - a.f.i.