That Xm7 shape obviously doesn't work in every situstion. Can anyone explain to me when it does? I tend to try things but would be nice to know the theory behind it
When to use a chord voicing (shape)? The first step is to learn to play rhythm within the rules around voicing .then figure out when to bend or break them.
Some basics rules to learn
Avoid parallel motion with perfect intervals (perfect 4th and 5th and octave)
Avoid doubling notes. If you must double one try to make sure its a melody note.
Shortest route rule. Any note that is moving should move the shortest distance.
Easy exanple play a 4 note C# diminished with root on the 5 string and then play a C7 by leaving the other strings fretted and moving the C# down to the C. (Sidebar.....in any diminished 7 chord, moving any one dote down a semitone will result in a dominant 7 chord)
Something else to think on with chord voicings. In four note diatonic chords the 2 most important notes are the 3 and the 7. If one is playing with a bass, the root is the first note usually dropped, the fifth the second. This also can apply to extended chords as well.
The Magic really starts to happen when you can play it with your eyes closed
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Some basics rules to learn
Avoid parallel motion with perfect intervals (perfect 4th and 5th and octave)
Avoid doubling notes. If you must double one try to make sure its a melody note.
Shortest route rule. Any note that is moving should move the shortest distance.
Easy exanple play a 4 note C# diminished with root on the 5 string and then play a C7 by leaving the other strings fretted and moving the C# down to the C. (Sidebar.....in any diminished 7 chord, moving any one dote down a semitone will result in a dominant 7 chord)
Something else to think on with chord voicings. In four note diatonic chords the 2 most important notes are the 3 and the 7. If one is playing with a bass, the root is the first note usually dropped, the fifth the second. This also can apply to extended chords as well.