Watch the Approach 1: Breakdown online guitar lesson by Vicki Genfan from Rhythm Makeover: Vicki Genfan
With each of these chords, even though they’re moveable, there are some possible open strings that might ring. Always use your ear to determine whether or not you want to hear them. Sometimes you get some really cool surprises this way - sometimes not! For instance, the E7 here can use the low E as its bass note. If we play that chord form somewhere else on the neck, we’ll have to mute our 6th string.