This place has taken on the feel of a real good guitar music site--'splainin' no-third chords, movable chords, altered tunings.

This is for those alternative voicings that give an unexpected sparkle to a tired old progression.

In the same way Mooh explained the omission of the third for a modal sound--instead of a C-G-F progression played straight, try 33X013-3X0033-133011 for a completely different feel, same progression,

Here's a cool one; for D-A-G...A..Bm-F#m-Em try it this way; X00770--007600-3X0203...002220..7X7770-2X2220-020033...

Just some things I learned as a fingerstyle player who's lately taken to strumming a bit.