As the word "last" implies, the music was written very late in Strauss' life, and apart from one short piece, these were indeed his swan songs.

NPR: Richard Strauss: Perfecting the Swan Song

Andrew Whitson, 28, and Paul Swan, 39, both from East Lothian, admitted singing racially-offensive songs on a train from Ayr to Glasgow on Saturday.

BBC: Glasgow & West Scotland