Vocal Spectrum was created in 2003.
Vocal Performances was created in 1981.
Vocal Point was created in 1991.
The Scholars - Vocal Group - was created in 1968.
Ensemble Vocal Katimavik was created in 1970.
Emersons - vocal group - was created in 1957.
Artists' Vocal Ensemble was created in 2004.
Cantus - vocal ensemble - was created in 1995.
Quintessential Vocal Ensemble was created in 1993.
Academy of Vocal Arts was created in 1934.
Doctor Spectrum was created in 1971.
Spectrum Safari was created in 1983.
Xeris spectrum was created in 1758.