If a standard bearer like Herbert von Karajan suffices, Spotify has all four of his complete cycles.

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Richard Osborne wrote the book Herbert von Karajan: A Life in Music.

NPR: Herbert von Karajan's Symphonic Obsessions

In classics, it has the great Universal Classics catalog, meaning recordings by artists like Herbert Von Karajan, Maurizio Pollini, the Emerson String Quartet, and other best-in-the-world acts.

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With the help of his handlers in New York, he has learned how other classical musicians developed and exploited their star power, how Horowitz and Bernstein, Herbert von Karajan and Anne-Sophie Mutter and Yo-Yo Ma took the extra steps that provided more celebrity and greater fees.

NEWYORKER: The Olympian