The I VI-7 II-7 V7 Progression You must first complete Combining 6th String Root Voicings to make ii-7 V7 I before viewing this LessonPlease purchase the course before starting the lesson. The I VI-7 II-7 V7 Progression is the basic “Turnaround” pattern used in thousands of jazz songs. In this lesson you’ll learn to play it starting from a 6th String root voicing.