Basso Continuo, also known as figured bass, is a musical practice from the Baroque period where a continuous bass line is accompanied by harmonies that are realized by a keyboard or other chordal instrument. This technique provides a harmonic foundation for the melody above and relies on chord inversions indicated by figures placed below the bass notes. Basso Continuo is crucial in understanding the structure and function of harmony in Baroque music, emphasizing the interplay between melody, harmony, and bass lines.