The m7 chord, short for minor 7th, combines the somber qualities of a minor chord with the depth added by the 7th interval. This chord comprises four notes: the root, minor third, perfect fifth, and minor seventh. This configuration gives the m7 its uniquely rich, moody, and somewhat jazzy sound. Often used in genres such as jazz, blues, and funk, the m7 chord provides a smooth transition between chord progressions and adds a pensive undertone to compositions. For guitarists, mastering this chord in various positions along the fretboard is essential for adding textural layers to their music.