Final answer:
Each manual or keyboard on the Baroque organ is connected to valves or pipes that produce sound. The organist can control different sounds and combinations by using multiple manuals and stops.
Step-by-step explanation:
Each manual or keyboard on the Baroque organ is connected to the valves or pipes that produce the sound. When a key is pressed, it opens a valve or activates a mechanism that allows air to flow through the pipes and produce sound.
In the case of a Baroque organ, there are usually multiple manuals or keyboards, each connected to a specific set of pipes or stops. This allows the organist to control different sounds and combinations of sounds.
For example, one manual may control the pipes that produce a flute-like sound, while another manual may control the pipes that produce a trumpet-like sound. By combining different manuals and stops, the organist can create a wide range of tones and textures.