Daug7

Daug7 is D, F#, A# and C, a augmented seventh. The shape this page opens on is written xx0312, lowest string first.

Also written D7#5, D+7 or D7(#5). The same chord either way; which spelling you meet depends on who wrote the chart.

There are 6 common shapes for Daug7 on the guitar, and 29 derived voicings in 4 families.

The common shapes, written lowest string first: xx0312, x545x6, x58576, 10-9-10-x-11-x, 10-x-10-11-11-x, x-x-12-15-13-14.

Shell. Root, third and seventh: the guide tones fix the quality, so the fifth is dropped. That is what leaves a string free, so pick a tension to put on top. Daug7 has xx0576, x5x576, 10-x-10-11-11-x.

Drop 2. A close-position chord with the second voice from the top lowered an octave. Sits on four adjacent strings. Daug7 has xx0312, 2303xx, x3433x, 6545xx, xx8778, 8987xx, x-x-10-11-11-10, x-13-12-11-13-x.

Drop 3. The third voice from the top lowered an octave. The dropped voice becomes the bass, which is why a string is skipped. Daug7 has 2x031x, x3x332, 6x453x, x5x576, x-9-x-7-11-8, 8x877x, x-13-x-11-13-10, 10-x-10-11-11-x.

Open string. An open string left ringing against a fretted grip. Because it costs no finger, it sounds a note the closed shape has none left for -- a tension on top, or a pedal root underneath. Either a familiar grip with open strings added, or a shape so sparse the open strings carry the chord. These belong to their key rather than to a shape, so D, A, G and E have many and Eb a handful. Daug7 has x34330, 6x4530.

Tensions. A shell of Daug7, root, third and seventh, leaves a string free, and the tones that belong over it are the b9 (Eb), the 9 (E), the #9 (E#) and the #11 (G#).

The common shapes and the derived voicings come from different places, and both are explained in where the chords and the theory come from.