Watch the Finger & Thumb Together Free Stroke online guitar lesson by Andrew Leonard from Beginner Method for Classical Guitar
When playing right hand free strokes with fingers and thumb, you have to be aware of the difference in finger and thumb joints. The fingers have three and the thumb has two joints. In this lesson's video, I'll explain the mental process to play both at the same time. I refer to it as "mind over matter" but maybe it's a "Jedi mind trick." Apologies for the digression!