To find out why this is Musical Monday, you will have to go check out The Devil Dog, where the Karate Lady has posted about Mr Karate & the Boy and their cello recital yesterday. There is even video.
The Boy (Mom's nephew); Mr Karate (Mom's son)
(You guys know, of course, that Mom and the Karate Lady are sisters, right? So that makes Mr Karate and the Boy cousins. They are 17 years apart in age, but they love each other like brothers.)