What is a rearranged chord called?

An altered chord or a rearranged chord is a standard chord with one or more notes raised or lowered by one semitone. They are notated by adding + or - after the note name, for example C+ or F-. Here are the most common altered chords:

Diminished chord (dim): This is a chord that has been lowered by one semitone. It is notated by adding the symbol "dim" after the chord name, for example, Cdim or Gdim.

Augmented chord (aug): This is a chord that has been raised by one semitone. It is notated by adding the symbol "aug" after the chord name, for example, Caug or Gaug.

Suspended chord (sus): This is a chord that has replaced the third with either the second or the fourth. It is notated by adding the symbol "sus" after the chord name, followed by the number of the suspended note, for example, Csus2 or Gsus4.

Added chord: This is a chord that has added an extra note to the basic triad. It is notated by adding the symbol "add" after the chord name, followed by the note name, for example, Cadd9 or Gadd13.

Other altered chords include the diminished seventh chord (dim7), the augmented seventh chord (aug7), the half-diminished seventh chord (m7b5), and the dominant seventh chord (7). Altered chords are often used to add color and interest to a piece of music.