Marty Schwartz uploaded his first guitar tutorial in order to make sure one of his students was practicing. He now teaches people online through guitar tutorials and gets 7 million views a month.

But how we learn the instrument has been transformed by technology, and online platforms allow über-teachers like Schwartz to reach players in all corners of the globe, 24 hours a day, seven days a ...

Wondering how Marty Schwartz became the one-man brand known as Marty Music, responsible for teaching countless people how to play the guitar over the last 15 years or so via lessons on his YouTube ...