Perfect 5th Playing By Ear – Chord 1 2 In this lesson, you will hear a Perfect 5th played as a chord, then play it by ear on your instrument. Here is an example of a Perfect 5th played as a chord.January 2, 2013 1 2 In this lesson, you will hear a Perfect 5th played as a chord, then play it by ear on your instrument. Here is an example of a Perfect 5th played as a chord. Perfect 5th – Chord Guitar Power Chord Please press the Exercise button below.