Complex sentence: Groove is the sense of propulsive rhythmic "feel" or sense of "swing" created by the interaction of the music played by a band's rhythm section (drums, electric bass or double bass, guitar, and keyboards).
Split into simpler sentences: Groove is the sense of propulsive rhythmic "feel" or sense of "swing". It can be created by the interaction of the music played by a band's rhythm section (e.g. drums, electric bass or double bass, guitar, and keyboards).