He was revered for the precision of his baton technique, and for his prodigious memory — he rarely used a score in performances — but when he was at his most interpretively idiosyncratic, he used his powers to distend phrases and reconfigure familiar balances in the service of an unusual inner vision.

“He is clearly a brilliant man,” John Rockwell wrote in The New York Times in 1979, “perhaps too brilliant to rest content with endless re-creations of the standard repertory. He is also, it would seem, a coldly defensive man, and perhaps that coldness coats his work with a layer of ice.

“The only trouble with this line of thinking is that it doesn’t take all the facts into account. Mr. Maazel, when he’s ‘on,’ has led some of the finest, most impassioned, most insightful performances in memory. When he’s good, he’s so good that he simply has to be counted among the great conductors of the day. Yet, enigmatically, it’s extremely difficult to predict just when he is going to be good or in what repertory.”

A Boy With a Baton

Perhaps because he grew up in the limelight, conducting orchestras from the age of 9, Mr. Maazel was self-assured, headstrong, and sometimes arrogant: When he took a new directorship, he often announced what he planned to change and why his approach was superior to what had come before. He knew what he wanted and how to get it, and if he encountered an immovable obstacle, he would walk away, also with a public explanation.

That was how he handled his brief term as general manager and artistic director at the Vienna State Opera, where he was the first American to wield such power.