He also takes courses in piano, organ, choral conducting, Gregorian chant, liturgy and Latin.

作曲系内容很多，除了专业作曲，还要修读钢琴、管风琴、合唱指挥、额我略音乐、音乐礼仪和拉丁文等。

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He traveled, though less extensively than John Paul, and presided over Masses that were heavy on Latin, Gregorian chant and the silk brocaded vestments of his pre-Vatican II predecessors.

NPR: Pope Legacy: Teacher Who Returned To Church Roots