It is difficult now to imagine San Francisco Bay without bridges, but not too long ago, a complex system of ferries and trains helped span the waters in an elegant way. The Key System was a huge portion of this network; it was part of businessman "Borax" Smith's method to attract San Francisco workers to live in the cities of Berkeley, Oakland, and Piedmont, where he dealt in real estate. The Southern Pacific Railroad was the Key System's fierce competitor, then later an ally, before it was vanquished. Thousands of commuters rode the system for years, until a ridership decline eventually doomed the Key when bridges finally crisscrossed the bay.

“Music is a world within itself, with a language we all understand.” —Stevie Wonder, “Sir Duke” In 2003, young professor Ferentz LaFargue traveled to Paris, where his fiancée, Tricia, declared she wasn’t happy with their relationship, ending what he thought was a wonderful engagement. After days of “craying”—“that sorrow-laden blend of crying and praying delivered in perfect pitch by those in mourning”—Ferentz happened upon Stevie Wonder’s 1976 classic double album Songs in the Key of Life. Listening to it anew was a healing, spiritual trip down memory lane, helping him to come to terms with his breakup and reflect on how songs in general have been linked to his life. In this book, Ferentz invites us to get cozy and listen as he hits PLAY on meaningful tracks from Wonder and others, including Lauryn Hill, Wyclef Jean, LL Cool J, Beenie Man, Sheryl Crow, Roberta Flack, Donny Hathaway, and Black Sabbath. He recalls: How the fusion of rock and rap in the breakthrough Run-D.M.C./Aerosmith video “Walk This Way” helped to change an adolescent Ferentz from outcast to authority figure How Michael Jackson’s Thriller brought back a traumatic childhood experience How Kanye West’s “Jesus Walks” speaks to the tension between his Christian beliefs and his need to rip it up in clubs as a hip-hop head In the tradition of Nick Hornby’s Songbook¸ these words paint a portrait of a life framed by sounds, allowing all of us to think about what songs have been key in our own lives.

Irwin Chusid profiles a number of "outsider" musicians - those who started as "outside" and eventually came "in" when the listening public caught up with their radical ideas. Included are The Shaggs, Tiny Tim, Syd Barrett, Joe Meek, Captain Beefheart, The Cherry Sisters, Daniel Johnston, Harry Partch, Wesley Wilis, and others.

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Stevie Wonder's album, Songs in the Key of Life, came out in 1976.