Plummer played what is termed the plectrum style of banjo playing and used, amongst other instruments, a Vega Vox 4 plectrum banjo as well as a Jerry Reilly Bicentennial Electronic (manufactured around 1976), which used as its base a 1927 Gibson Mastertone rim.
He played this particular instrument, which was heavily ornamented in the casework and glowed beautifully under lights, for some of the shows he did with Liberace.
He also toured with country singer Eddy Arnold and was also often a guest on TV specials, particularly the 1975 Disney production Welcome to the World, starring Lucie Arnaz (when he was just 14 years old) and later in 1980, on Lucy Moves to NBC, starring Lucille Ball, Bob Hope, Gene Kelly, Donald O'Connor and a host of others.
Scotty Plummer was killed in a motorbike accident in the Bermudas in 1992, leaving behind his wife Denise and daughter Kylen.
Plummer was posthumously inducted into the National Four-String Banjo Hall of Fame.