Intervals are the building blocks of every melody you have ever sung. Kathy Alexander is a music teacher, voice specialist and author. She believes that singers who train in intervals will improve their tuning and understanding of music, and gain an essential skill needed to sight-read. Lessons include the tritone, the major and minor seventh, and major and minor 6th. Kathy gives you song examples and guided exercises so that you can master these intervals in your own practice.