Is an piano an string instrument?
There are three basic types of stringed instruments, that is, instruments which produce a musical tone by vibrating strings. They are 1) Plucked – like a guitar or banjo 2) Bowed – like a violin or cello 3) Struck – Where the tone is created by hitting the string – a piano is probably the most basic example of a hammered string instrument, though, due to the hammered technique used it is also sometimes considered a percussion instrument.