bassline

A bassline (also spelled bass line) is the term used in many styles of popular music, jazz, blues, trance and funk for the low-pitched instrumental part or line played by a rhythm section instrument such as the electric bass, double bass or keyboard (piano, Hammond organ, electric organ, or synthesizer). Basslines are in the bass, which means that they are lower in pitch than the other musical parts (chords, instrumental melodies, and vocal melodies).
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