Does every concert need a common thread?

Does every piece need a concert announcement? These questions were asked recently at a brass band blog. Well, everyone can do it the way they want. But background knowledge about a piece is important for the designer of a concert. Whether this knowledge is used during the rehearsal period or communicated to the listener via a concert announcement is up to the person in charge. In any case, we endeavor to provide extensive information and further links in the sheet music database www.musicainfo.net, which you can then use as you wish.