Tritones – Playing by Ear Up 1 2 In the next lesson, you will play a tritone by ear ascending. Here is what a tritone sounds like going up. Tritone - Up Please press the Exercise button below.January 16, 2013 1 2 In the next lesson, you will play a tritone by ear ascending. Here is what a tritone sounds like going up. Tritone – Up Please press the Exercise button below.