Here are a few more
1. The music is in 4/4 time "moderately fast." How many strums per measure? If D chord is listed for 3 bars, then I play 12 strums?

2. Next, If ther are multiple chord diagrams per measure, for example: G, D, A. How do I play that measure?

3. What does: G, d/F#, A in a chord diagram per one measure mean?

Thanks for your assistance. I'm re-learning how to play guitar. Over 20 years ago, I took lessons after school when I was in high school. I have a few instructional books. Took some private lessons and now I'm taking Guitar Workshop in a group environment. I have a slight working knowledge of guitar.