Augmented
R 3 #5
An augmented chord has a bright and tense sound, often described as sharp, striking or flamboyant. It is a type of chord that creates a sense of tension and unease, and is often used in classical and jazz music.
An augmented chord is a chord in which the fifth is raised by a half step. For example, a C augmented chord contains the notes C, E, and G#. The augmented chord is often denoted by the symbol "+" or "aug" after the chord name.
The function of an augmented chord in chord progressions is to create a sense of tension and instability. It can be used to lead to a major chord or to add interest to a chord progression. For example, a common progression that uses an augmented chord is I - III+ - IV - V, where the III+ chord leads to the IV chord and adds tension to the progression.
Augmented chords are often used in modulation, where they can be used to pivot to a new key. They can also be used as a substitute for a dominant chord, adding more tension and interest to the progression.