Bass lines resolve except for my last 2 examples of McCartney's "O Bla Di O Bla Da"! You see! There are wrong notes and I couldn't save the performance of the bass line. It happens so don't sweat mistakes. And don't make an effort to save yourself from them. We mess up! It's music! | Jeff Berlin

Paul McCartney and Mick Jagger remain the ultimate examples of rock stars defying age. McCartney carries the Beatles legacy filling stadiums worldwide with songs that changed music forever while still writing fresh material. His voice may have softened but his melodic magic and charm keep generations coming back. Jagger meanwhile defies time itself sprinting across stages with the Rolling Stones his energy and charisma seemingly untouched by decades. He remains the blueprint for frontmen everywh