C7sus4

C7sus4 is a chord in Western music theory, commonly used in jazz, blues, and rock music. It is a seventh chord with a suspended fourth interval, meaning it omits the third and includes a fourth instead. The basic structure of a C7sus4 chord is C-E-G-Bb, where C is the root note, E is the major third, G is the perfect fifth, and Bb is the suspended fourth. This chord is often used to create a sense of tension and resolution, similar to other seventh chords. It can be played on a piano or guitar, and its sound is characterized by a bright, open quality. In jazz, the C7sus4 chord is often used in the left hand to provide a harmonic foundation for improvisation. In popular music, it is frequently used in chord progressions to create a sense of movement and tension. The C7sus4 chord is a versatile and widely used chord in music, offering a unique sound and harmonic function.