To play the Dmin7b5 chord, place the index finger on the 1st fret of the top g-string, ring finger on the 2nd fret of the C-string, middle finger on the 1st fret of the E-string, and little finger on the 3rd fret of the bottom A-string.
The Dmin7(b5) chord is a minor-seventh-flat-five chord, also known as a half-diminished-seventh chord, and contains the notes D-F-Ab-C.
To build a Dmin7(b5), take the minor seventh chord formula (1-b3-5-b7) and apply it to the D major scale (D, E, F#, G, A, B, C#). Flat the fifth scale degree to make the minor-seventh-flat-five formula 1-b3-b5-b7.
Identify the first, flat third, flat fifth, and flat seventh scale degrees in the D major scale which are D-F-Ab-C to form the Dmin7(b5) chord.
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