Music Theory Spectrum was created in 1979.
Journal of Music Theory was created in 1957.
Society for Music Theory was created in 1977.
Dutch Journal of Music Theory was created in 1996.
Journal of Music Theory Pedagogy was created in 1987.
The Spectrum Song was created in 1961.
Spectrum Technologies was created in 1987.
Spectrum Comics was created in 1983.
Vocal Spectrum was created in 2003.
Conus spectrum was created in 1758.
Doctor Spectrum was created in 1971.
Spectrum Aeronautical was created in 1995.
World of Spectrum was created in 1995.