Basso continuo is a musical practice from the Baroque period, typically used in ensemble music. It involves a continuous bass line played by instruments like the cello or bassoon, while a keyboard instrument, such as the harpsichord or organ, fills in harmonies above it. This technique provides a harmonic foundation for melodies sung or played by other instruments. The term "basso continuo" translates to "continuous bass," emphasizing its role in maintaining a steady harmonic support throughout a piece. Composers often indicated the chords to be played above the bass line using a system of figured bass, allowing performers some freedom in interpretation.