The C# minor chord is a triad consisting of three specific notes: C#, E, and G#. It is classified as a minor chord because it has a minor third interval between the root note (C#) and the second note (E), and a perfect fifth interval between the root and the third note (G#). This chord is commonly used in various music genres, providing a somber or melancholic sound. In music theory, the C# minor chord can be represented in different ways, such as in root position or inversions. It is often found in the key of E major or the relative key of C# minor, where it plays a significant role in establishing the harmonic structure. Musicians frequently use this chord in compositions and arrangements to evoke emotional depth.