Learn to Sing Harmony By Ear Level 1A: Basics & Harmony Above the Melody
Sue Thompson, Keith Little & Don Share
Learn to Sing Harmony By Ear Level 1B: Next Steps, Harmony Below the Melody
Sue Thompson, Keith Little, Don Share
Learn to Sing Harmony By Ear Level 2: Your Harmony Autopilot
Sue Thompson and Don Share
Learn to Sing Harmony by Ear Special Combo Pack
Sue Thompson, Don Share, Keith Little