The song 'Feliz Navidad' is one of the most popular and often-heard songs of the Christmas season. It was written and recorded by the Puerto Rican artist Jose Feliciano in 1970. The spanish words are derived from a common holiday greeting 'Feliz navidad, prospero ano y felicidad' meaning 'prosperous year and happiness.' The percussion parts can be played by the choral musicians, or assigned to a small group of percussionist. In either case, the pulse and tempo should remain steady and constant. If you are performing this song in a chorus rather than a quartet, you could try having some of the singers create the percussion parts using vocal percussion or body percussion by imitating the sounds of the maracas, tambourine, cowbell and woodblock. Four copies of the sheet music arrangement plus a CD featuring the full performance plus part-predominant tracks (Tenor, Lead, Baritone, Bass), sung with lyrics.