The cost was the lineup itself. David Ruffin, the voice on "My Girl" -- that rasp, that ache, that impossible tenor -- got fired in 1968 for missing shows and letting the fame unspool him. Eddie Kendricks, the smooth falsetto that gave the group its silk, left in 1971. The Temptations kept going because the institution was bigger than the individuals, but each departure cut something out of the sound. They cycled through members the way Detroit cycled through seasons, and somehow the music never lost its footing. The discipline of the group was the constant, even when the faces changed. The turnover could have destroyed them, but it didn't, because Otis Williams understood that the name mattered more than any one voice.

"Papa Was a Rollin' Stone" is the mothership. That seven-minute epic, produced by Norman Whitfield, tore up the rulebook for what a soul song could be. The wah-wah guitar, the extended instrumental intro, the story of a father whose absence defined the family -- it won three Grammys and proved the Temptations could do more than love songs. But "My Girl" is the pocket, the baseline for every harmony group that came after. Ruffin's vocal on that track is the dictionary definition of soul singing. They moved from the romantic to the political to the experimental without ever losing the thread that held them together. The range was astonishing: from "Cloud Nine" to "Just My Imagination" to "Ball of Confusion," each song a different room in the same house.

The group is still active, still touring, still carrying the name into the twenty-first century. That longevity says something about the architecture Otis Williams built -- the Temptations didn't just make hits, they made a system that could survive its own genius. Every time a group lines up on a stage and hits a harmony tight enough to cut glass, they're standing in the space the Temptations cleared. The crate holds, and the one keeps calling. Five men from Detroit who turned singing into architecture and made it last.

The group is still active, still touring, still carrying the name into the twenty-first century. That longevity says something about the architecture Otis Williams built -- the Temptations didn't just make hits, they made a system that could survive its own genius. Every time a group lines up on a stage and hits a harmony tight enough to cut glass, they're standing in the space the Temptations cleared. The crate holds, and the one keeps calling. Five men from Detroit who turned singing into architecture and made it last.

The Temptations was profiled in the documentary, The Temptations, in 1998.