To use Reason, click on the Reason icon or search for it. Run the multi license version to be able to save work between lessons. Multi license allows multiple simultaneous users unlike the demo version. The mixer allows controlling volume, EQ, panning, and more for each channel. EQ splits sound into frequency bands to boost or cut tones. Samplers can import sounds and assign them to keys. The synth allows selecting oscillators like saw, square, and sine waves to create different tones.