Helps students learn about the interval of a second.

0:33 Overview
0:55 Lesson
3:23 Demonstration

A copy of one of these methods is required:

Basic Course Lesson Level 1A:
http://amzn.to/2BRzbt5

Basic Course Lesson Complete Level 1:
http://amzn.to/2EwmfK9

Beginner All-in-One Course Book One:
http://amzn.to/2smz84H