Be it Blue Öyster Cult, Motörhead or Mötley Crüe, the Germanic umlaut is a grammatical mechanism that has been synonymous with hard rock and heavy metal for decades. While it's clear that the umlaut's usage in the rock scene has always been for rather aesthetic purposes, that hasn't stopped prog legend and Jethro Tull leader Ian Anderson pointing out that it has been spectacularly misappropriated over the years.
When asked by German radio station Radio Bob about the usage of umlauts in the title of Jethro Tull's imminent new album, RökFlöte, Anderson explains (as transcribed by Blabbermouth):
