instrumentalist vs rhythm and blues musician

Other hyponyms of instrumentalist include accompanist, accompanyist, accordionist, concertinist, bandsman, bassist, bassoonist, bell ringer, carillonneur, cellist, violoncellist, clarinetist, clarinettist, flautist, flute player, flutist, gambist, guitar player, guitarist, harmoniser, harmonizer, harper, harpist, harpsichordist, hornist, jazz musician, jazzman, keyboardist, koto player, lutanist, lutenist, lutist, oboist, organist, percussionist, pianist, piano player, bagpiper, piper, recorder player, rock 'n' roll musician, rocker, saxist, saxophonist, singer, vocaliser, vocalist, vocalizer, sitar player, soloist, trombone player, trombonist, cornetist, trumpeter, vibist, vibraphonist, fiddler, violinist, violist.