Emmanuel with Angels We Have Heard Refrain and The Birthday of A King custom arranged for Strings (quartet or ensemble), Rhythm and Cong. Singing – This classic Christmas medley is great for Christmas Day or eve. Wonderfully worshipful. The String parts are at a moderately difficult. Key of C to F and then G. Parts include and Piano Vocal part, violin 1, violin 2 viola and cello. This also contains a full score and an audio mp3 of the full arrangement.