The E-Mu Proformance / Proformance Plus is a compact, half-rack sample module built for musicians and producers who want realistic piano sounds without complexity. Its simple front panel controls — volume, tuning, transpose, MIDI channel, and preset selectors — make it instantly usable, while the Plus version adds more sonic versatility with electric pianos, organs, vibes, and additional presets. With true-stereo 16-bit samples, solid polyphony, and a lightweight but rugged design, it’s a workhorse rig for stage or studio when you need that authentic piano voice in a minimalist footprint.