Major 2nds Playing By Ear 1 2 In this lesson, you will practice hearing a Major 2nd and playing it on your instrument. A Major 2nd ascending (up) sounds like this: Please press the Exercise button below.November 10, 2012 1 2 In this lesson, you will practice hearing a Major 2nd and playing it on your instrument. A Major 2nd ascending (up) sounds like this: Please press the Exercise button below.