The following table outlines the ranges for each of the choir libraries that we offer. All ranges are provided using Middle C = C4.
| Library | Ranges |
| Originals - Epic Choir |
Sopranos + Altos: E3 - G#5 Tenors + Basses: D2 - G#4 |
| Eric Whitacre Choir |
Tutti: D#2 - A#5 Sopranos: B3 - A#5 (Legato A5) Altos: E3 - D#4 Tenors: B2 - G4 Basses: D#2 - C4 |
| Eric Whitacre Contrast |
Tutti: F2 - A5 Sopranos: C4 - A#5 Altos: F3 - D#4 Tenors: C3 - G4 Basses: F2 - C4 |
| Hearth and Hollow - Folk Voices |
Folk Ensemble (in octaves): D#3 - D5 Willow: D3 - E5 Juniper: D3 - E5 Hawthorn: D3 - E5 Forest: D3 - E5 Whistle: F5 - A#6 |