TheSingingMixer: #BobDylan’s #KnockinOnHeavensDoor is a cinematic western ode to an old gunslinger hanging up his badge. It is so satisfying to sing, and fun to break out the #harmonica too. Still some spots open if you’d like to #collab in! #VerticalPiano #JoinMyCollab #3PartHarmony #tsm #70s