Historical clue formulations

• Schubert compositions — 2019-03-31
• German musical entertainment — 2014-05-04
• Schubert works — 2007-06-16
• German songs — 2005-04-15
• Art songs — 1997-11-22
• Oktoberfest entertainment — 1997-09-27
• Songs — 1997-08-16
• German ballads — 1996-06-25
• Fischer-Dieskau's musical forte — 1994-03-06