Long before it was (well on its way to becoming) legal, marijuana was a staple of musicians’ daily diets. Some of them claimed that it unlocked the doors of their imagination, allowing them to compose some of their greatest songs. Who can say? More to the point, who are we to judge? All we can do is breathe deeply, taking in the many wild wonders of those magical musical moments when, in the midst of a cumulus cloud of creation, our favorite artists produced some of the finest . . . and weirdest . . . odes to an extremely popular plant.