William Byrd’s dates straddle the end of the Renaissance and the beginning of the Baroque, and one would think that his music might reflect the change in style, but it is not the case. Ave Verum Corpus is a short but solemn Eucharistic hymn dating from the 14th century and attributed to Pope Innocent VI. It has been set by many other compoers.
This transcription of William Byrd’s version is scored for 2 Trumpet, French Horn, and Euphonium (or Trombone, although Euphonium is preferred)
Ave Verum Corpus is not recorded, so the mP3 is a FINALE MIDI audio extract (not a great sound, but you can get the idea of what the piece sounds like.
Ave Verum Corpus sells for $15 for the hard copy, $10 for pdfs.