MasterPolish is a simple mastering chain for producers who want to finish the beat, not learn five plug-ins. The modules sit in signal-flow order: Low End, Glue, Tone, Width and Limiter — each with one knob, an activity LED and a readout of how hard it's working right now. Bass Tightness cleans up the subsonics and turns down the booming area around 95 Hz only when the low end starts to cover the rest of the mix. Glue is a slow, low-ratio bus compressor that glues the drums to the melody but keeps the difference between verse and chorus. Brightness adds shine and air (or warms things up), and Stereo Width widens the mix while keeping the bass below 120 Hz in mono. At the end sits a true-peak limiter: push the master into the ceiling with Limiter, set the ceiling in dBTP with Ceiling, and 4× oversampled detection with lookahead makes sure no peak — not even between samples — goes over it. Auto Gain matches the loudness to the original, so you compare tone, not decibels. The display shows short-term LUFS, true peak and the gain reduction of the limiter and the compressor.