The C♭ minor chord is a triad consisting of three notes: C♭, E♭, and G♭. It is built on the root note C♭ and follows the minor chord structure, which includes a minor third and a perfect fifth. This chord is often used in various musical genres to create a somber or melancholic sound. In music theory, C♭ minor is enharmonically equivalent to the B minor chord, meaning they sound the same but are written differently. This chord can be found in compositions that utilize the key of C♭ minor, which has a key signature of five flats.