Noun
walking bass
(music) A style of bass accompaniment or line, common in baroque music and jazz, which creates a feeling of regular quarter note movement, akin to the regular alternation of feet while walking.
I continued studying by myself in the field of jazz with my own technique of improvisation, walking bass lines, rhythms, all kinds of stuff, which I created for myself. Miroslav Vitous
Jazz guitar playing styles include " comping " with jazz chord voicings (and in some cases walking bass lines) and "blowing" ( improvising ) over jazz chord progressions with jazz-style phrasing and ornaments. Source: Internet
A walking bass line, as referred to below. Source: Internet