Names can be pretty exciting things for composers. If you've got the right combination of letters in your name, you can encode it into music, leaving a kind of musical signature in your works to mark them as your own. The most famous of these is undoubtedly that of Johann Sebastian Bach, whose last name, using the German system of note nomenclature, translates directly into the notes B-flat, A, C, B-natural. Bach himself used that motif in numerous pieces (iconically, it's the last subject in the last, unfinished, fugue in The Art of Fugue, and, Bach enjoying the status that he does in the musical landscape, numerous other composers have deployed it in their works as a kind of homage, some more subtly than others.