Generally, live PA artists and performers use a central sequencer which triggers and controls sound generating devices like synthesizers, drum machines, and digital samplers. The resulting audio outputs of these devices are then mixed and modified with effects using a mixing console. Interconnected drum machines and synthesizers allow the electronic live PA artist to effectively orchestrate a single-person concert. Even though the live PA artist performs alone, she or he may be triggering a large number of musical parts, including a bassline, drum beats on a drum machine, synthesizer chords, and sampled riffs from other recording.