 It is mostly plucked with the fingers, but on some songs, the bow is used, either for stacatto roots and fifths in "two-feel" or, on a ballad, for sustained low notes.On some songs, bass players may be given an improvised solo.Some gypsy jazz bass players strike the fingerboard with the fingers between plucked notes, creating a perrcussive style called slap bass (this is different from the 1970s bass guitar style of the same name).