Check out this instructional acoustic guitar lesson that shows you an easy chord progression and great strum pattern using the song "Knockin' On Heaven's Door" by Bob Dylan. When working on the strumming, just listen and play along. Try not to watch the screen. Music is all about listening. But just like a metronome, you don't want to watch it. Just listen to it. With this lesson and a bit of practice, play "Knocking on Heaven's Door" by Bob Dylan and improve your guitar playing skills.