Burton (Burnett), David (Davy) (Avery) (master Avery) c1470-c1543 England, ? - ?, ?
[? all refer to the same Gentleman of the King's Chapel]
 Te Deum. Organ
ascription master Averie - ? David Burton
 Missa Ut re mi fa sol la
ascription master Averie with later added surname Burton - ? David Burton