Courses, In The Jams, & Jam Packs
It's dominant 7 time! Here are two inversions of G7, one with the root on the second string, and another with the root on the third string.
When you play along with the jam tracks, play one inversion for four beats and switch to the other inversion for four beats. If these changes feel too fast, play one strum every four beats and then switch inversions. Remember to play through each jam track ten times.