The Tales of Ruby & the Boys: Let's Play Music is the second book in the Ruby & the Boys series. At home, with nothing to do, Ruby comes up with a creative solution—making her own instrument. The boys join in on the fun, too! But when Ruby and the boys go to their friends' house to play an actual drum set, Ruby isn't very good and feels discouraged. Now she needs to find a creative solution to this problem so that she can keep rocking out with her amigos!