Wiktionary
steelpan
alt. 1 (context music countable English) a percussion instrument made from a steel drum, originally from Trinidad 2 (context music uncountable English) A style of music incorporating steelpans. n. 1 (context music countable English) a percussion instrument made from a steel drum, originally from Trinidad 2 (context music uncountable English) A style of music incorporating steelpans.
Wikipedia
Steelpan
Steelpans (also known as steel drums or pans, and sometimes, collectively with other musicians, as a steel band or orchestra) is a musical instrument originating from Trinidad and Tobago. Steel pan musicians are called pannists.