In the artist's words:

Dear reader:

What follows is the story of the Monsters of Liedermaching. The six-headed songwriting monster, consisting of Mr. Burger, Mr. Pensen, Mr. Totte, Mr. Labörnski, Mr. Rüdiger Bierhorst and Mr. Fred Timm, would like to take this opportunity to introduce themselves politely but emphatically.
Not too soon, as the oddball combo is now in its 15th year of existence.