One night last week as I was frustrated with the kids not going to sleep, I decided to calm down by playing the guitar and singing. My daughter fell right to sleep, but my son kept sneaking down with the biggest smiles on his face saying "Mama! You are playing the _____ song!" It was so adorable that I was able to calmly tell him "Yes, I am. Now please go back to bed". He even turned off his music and opened his door so that he could hear me play, and he eventually did go to sleep. Now he is obsessed with me playing the guitar, and it's a great way to improve all of our moods.