The manuscripts scores contained in this collection further extend knowledge about Meyerbeer's non-operatic compositions instrumental, choral and occasional. These totally unknown works by a great operatic master range from a substantial cantata in the style of a dramatic monologue (for tenor solo with chorus and brass orchestra), through a brassy celebratory processional march, to a brief unaccompanied chorus of welcome. All the pieces are linked by their association with the various German Royal families with whom the composer had some association. All the were written, as it were, 'by Royal Command', for regal occasions either based on texts by a king for that monarch (King Ludwig I of Bavaria), for a Court festivity ordered by the ruler (King Friedrich Wilhelm IV of Prussia), or to celebrate the formal visit of a royal head of state to the nation (Queen Victoria and Prince Albert to Prussia).