In 2002 the research for Beethoven’s lost oboe concerto came to a temporary end. Now I’ve found new leads to the autograph manuscript – and to Mozart’s lost oboe concerto, too, and to a lost opera of Joseph Haydn. It is no coincidence that all autograph manuscripts are missing at the same time: They were together and possibly are, played in a concert in Augsburg/Germany. Maybe one of the last steps to solve this old riddle? Dive with me into still unknown depths of Augsburg’s musical history.