The 7(#5) chord has the root, major 3rd and minor 7th intervals of a dominant 7th chord but substitutes a augmented 5th for the perfect 5th that would be played in a dominant 7th. Example: the G7(#5) chord symbol specifies a chord whose root is G which uses pitches drawn from the B (major 3rd), D# (augmented 5th) and F (minor 7th) pitch classes. Listen to four different voicings of the C7(#5) chord.