Sound II for 4 Solo Voices was composed by Pelle Gudmundsen-Holmgreen in 2011. Dedicated to Theatre of Voices.
| Instrument (fx guitar, sang m.m.) | Alt, Bas Voice, Sopran, Tenor |
| Genrer (Fx Pop, Rock, Børn m.m.) | Post-1900 |
| Type (fx Instrumentskole o.lign.) | Vokal partitur |
| Niveau | Prof. |
| Sideantal | 14 |
| Media (fx Bog, CD, DVD m.m.) | Noder |
| Publisher/Producent | Edition Wilhelm Hansen, Edition Wilhelm Hansen AS |
| Bidragydere | Gudmundsen-Holmgreen, Pelle (Composer) |
| Sprog | Engelsk |
| ISBN | 9788759824160 |