“Y.M.I.” stands for “Young Musicians International”, based on an actual organization I traveled with during my own teenage years.  The idea was to “promote fellowship through the international language of music”. 

At least, in theory.

In practice, fellowship within the group was hard enough to maintain, while concerts were often the last thing on the mind of young men and women far away from home for the first time in their lives. 

Until, miraculously, it all came together at tour’s end.

It’s not “High School Musical” nor "Glee", but it will be recognizable to anyone who ever sang in a high school choir. 

Or survived adolescence.