The Thor device is a synthesizer from Reason that simulates a semi-modular synthesizer. Six filter and oscillator slots let you load up to three different filter modules and three different oscillator modules simultaneously, allowing you to dial in novel sounds. A modulation matrix gives you complete control over your signal flow, letting you modulate anything within Thor. Thor also has a simulation of an analog style step sequencer with more than one twist. This step sequencer can be used as a modulation tool, trigger phrases from specific keys and create arpeggios and percussion lines.