The extensive Eton Choirbook, compiled in the 15th century, contains the most highly elaborate, beautifully decorated gothic music in the English tradition. The pieces are unusually large and long, and Paul Van Nevel's whimsical note suggests that because they "induce a degree of emotion that borders on a state of trance, it is best to listen to no more than one a day". What is surprising is that there are still pieces from the famous collection new to CD, including a ravishing Magnificat by the unknown William Horewud. Van Nevel's choir of 15 singers is equal to all the melismatic challenges.