.
Chord subs seem to come easily and naturally on piano. Not so on guitar. The process of figuring out which finger and fret is doing what, and what to move to spell the new chord seems less intuitive on guitar. A random altered note om guitar just seems to come up discordant more often than on piano.

So I think I understand why a guitar players first reaction would be that a chord sub is the "wrong" chord.


Flatfoot sez: Call me when 'Talent-in-a-Box' is ready to ship! -- [8{>

Got some tunes on You Tube:
http://www.youtube.com/user/flatfoot50
.
My BiaB lesson site:
http://jdwolfe0.wixsite.com/learnbiab