What's Clue to What Bubble Does?

This week we are sponsored by Bubble. Bubble is a brilliant language learning app and tool. It has over a dozen different languages on it. And right now, you can get three months free if you buy a three month subscription. The same human fingers created three of the great artworks of the 20th century. Emil Richards, he was a hero of percussion. He played with Frank Sinatra; toured with George Harrison. Marvin Gaye did all his finger clicks on that album. I love this autobiography called My Life Behind Bars.