This is the definitive sacred collection for singers, a truly jumbo collection with an enormous selection of traditional literature. Besides dozens of familiar individual songs, there are 28 classic spiritual arrangements by Harry T. Burleigh, 13 concert arrangements of hymns by Rick Walters (including four duets), and even a few of the most essential oratorio arias. The contents of each voice edition are the same except for the oratorio arias. Extraordinary!