The instruments were first developed in Trinidad in the West Indies, and are generally tuned chromatically.
d'autore_  This group There are eleven instruments in this family of musical instruments, including the quadrophonic and invader lead varieties. The instruments were first developed in Trinidad in the West Indies, and are generally tuned chromatically. For 10 points, identify this type of instrument, a pitched percussion instrument that was first made from a 55-gallon container for oil.
d'autore_  This group There are eleven instruments in this family of musical instruments, including the quadrophonic and invader lead varieties.
{steelpan} (accept: {pan}, {steel drum}, or {steelband})