What do I need to use Hauptwerk?
In the very broadest of terms, you need a computer to run it that meets the minimum requirements. You also need a MIDI keyboard or MIDI organ console and an audio/MIDI interface for the computer. You will also need amplifiers and speakers (or headphones), and leads to connect everything together. You might also want one or more third-party instruments to use in Hauptwerk, although a basic 30-stop English organ sample set is included to get you started.