Perfect 4ths Dictation – Chord 1 2 In this lesson, you will hear a Perfect 4th played as harmonically as a chord, then write it in music notation. Here is an example of a Perfect 4th played as a chord. Perfect 4th - Chord January 1, 2013 1 2 In this lesson, you will hear a Perfect 4th played as harmonically as a chord, then write it in music notation. Here is an example of a Perfect 4th played as a chord. Perfect 4th – Chord Please press the Exercise button below.