Sonic Charge ?Tonic is a VST plug-in for Windows featuring a unique drum and percussion synthesizer combined with a pattern-based drum-machine engine. You can use the ?Tonic as a sound module to play drum sounds from your MIDI keyboard or sequencer or you can use the built-in pattern engine to play drum patterns in sync with your sequencer (provided your sequencer supports synchronization of plug-ins). The sound of the ?Tonic is 100% synthetic and rendered in real-time. No samples or pre-rendered waveforms are used.