What was the most popular instrument of baroque period?

The most popular instrument of the baroque period was the harpsichord. It was a keyboard instrument that produced sound by plucking strings with quills or leather plectra. The harpsichord was used in a wide variety of music, from solo pieces to large-scale orchestral works. It was particularly well-suited for continuo playing, which was the practice of providing harmonic support for other instruments or voices. The harpsichord was eventually replaced by the piano in the late 18th century, but it remains an important instrument in the study and performance of baroque music.