Chord Of The Week 27/9/14 - Open-position m7b5 chords

bigjon

Also called half-diminished chords.

Formula 1 b3 b5 b7, so Cm7b5 would be C Eb Gb Bb, i.e. 8643xx.

Commonly used as the II chord in a minor II V I progression, e.g. Dm7b5 G7b9 Cm7.

Here are the five CAGED shapes for m7b5 chords - 

Cm7b5: x31312

Am7b5: x01213 or x01013

Gm7b5: 31x021 (virtually unplayable, better is 3xx321)

Em7b5: 012030 or 012033

Dm7b5: xx0111

And here are all the m7b5 chords I can think of using open strings in low positions - 

Am7b5: x01213 or x01013

Bbm7b5: x12120

Bm7b5: x20231

C#m7b5: x42000

Dm7b5: xx0111

Em7b5: 012030 or 012033

Fm7b5: 1x1101

F#m7b5: 202212 (use thumb to fret 6th string)

Gm7b5: 31x021

G#m7b5: 4x0102

bigjon

Chord Of The Week Index updated at http://www.thefretboard.co.uk/discussion/598/chord-of-the-week-index with 60 discussions.

thomasross20

Wow - you're a jazzer, right?

Phil_aka_Pip

also used by Wishbone Ash in The King Will Come.

IMO the moveable A and D -shapes are most useful

matt1973

Thanks for posting.