Which development was made to the organ during the Baroque period?

During the Baroque period, a significant development for the organ was the addition of more stops, which created a greater variety of tone choices for composers and performers. This increase in stops allowed musicians to manipulate the organ's sonic palette more intricately, leading to richer and more complex musical textures. The versatility of the organ, enhanced by these stops, made it an essential instrument in both church settings and secular music.

This era was characterized by a focus on exploration and expansion of musical capabilities, and the organs built during this time reflected that ambition. Composers like Johann Sebastian Bach took full advantage of the organ's enhanced tonal variety, using it to convey a wide range of emotions and styles in his compositions. The evolution of the organ's mechanics and design during the Baroque period firmly established it as a cornerstone of Western classical music.