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A bass line is the lowest musical line in a piece of music. It provides the harmonic foundation and rhythmic support for the melody and the other accompanying parts.
What is a bass line?
The bass line forms the foundation of the harmony by outlining the roots and movement of the chords. In many styles of music, it also helps establish the rhythm and groove.
A bass line may be played by a bass guitar, double bass, synthesizer, the left hand on the piano or any other instrument that performs the lowest musical part.
How is a bass line used in piano playing?
On the piano, the bass line is usually played with the left hand. It defines the harmony and supports the rhythm while the right hand plays chords or the melody.
A strong bass line gives stability and direction to the music. Learning to create smooth and rhythmic bass lines is one of the most important skills for accompanying songs on the piano.