Irrefutable proof that Wikipedia is better than Encyclopædia Britannica

The award for most authoritative and encyclopedic Wikipedia article you'll never see in Encyclopædia Britannica goes to: Heavy metal umlaut. Here's an excerpt.

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The first gratuitous use [of the umlaut] appears to have been either by Blue Öyster Cult or by Black Sabbath, both in 1970. Blue Öyster Cult's website states it was added by guitarist and keyboardist Allen Lanier,[3] but rock critic Richard Meltzer claims to have suggested it to their producer and manager Sandy Pearlman just after Pearlman came up with the name: "I said, 'How about an umlaut over the O?' Metal had a Wagnerian aspect anyway."[4] Conversely, Black Sabbath, on a rare 7" single version of Paranoid (with the b-side Rat Salad), for no forthcoming reason, renamed the single "Paranoïd" with a diaeresis above the "i".[5] (In French, the words paranoïa, paranoïaque, paranoïde properly have the trema.)

On their second album In Search of Space (1971), Hawkwind wrote on the backside of the cover: "TECHNICIÄNS ÖF SPÅCE SHIP EÅRTH THIS IS YÖÜR CÄPTÅIN SPEÄKING YÖÜR ØÅPTÅIN IS DEA˝D". To add to the variation, Danish and Norwegian letters Ø and Å are added. While the Å being a separate letter sounding like the word "Oh", the Danish Ø is actually pronounced exactly like the German and Turkish Ö. And also the diacritical mark on the last " A˝ " is the "Hungarian umlaut" or double acute accent ( ˝ )—two short lines slanting up and to the right rather like a right double-quote mark—instead of dots (Hungarian uses neither the ( ˝ ) nor the traditional German umlaut ("Ä") over the letter "A", though, and ( ˝ ) is used only on the letters "Ő" and "Ű"). This was before Lemmy, later of Motörhead, had become a member of the group.