At SAP TechEd in 2008 in Las Vegas we gave all Community Day participants a harmonica. It was as a way to connect with people. I also believe in the following They Might be Giants quote: Music self-played is happiness self-made.
SAP Mentor Chris Solomon took the following footage from me starting the general community day session as well as the group playing and the funny coincidence of the Black Crows later that week playing a mean harmonica too. Way beyond my ability.
I am convinced that everyone has the music maker inside, you just have to nurture it. I once read, that scientists believe that music and singing developed in parallel to language.
People still sometimes come up to me and tell me how they liked the harmonica. One even said he used it to get TechEd sessions going, when the presenter wasn’t starting on time, he would play some riffs and that would get it done.