Scaler Detector is a key and chord detection plugin that applies machine learning analysis to identify harmonic content from audio or MIDI sources in real time. The tool operates as either a standalone application or as a VST, AU, and AAX plugin, making it accessible across most professional DAW environments.
The detection engine analyzes polyphonic material with particular strength in identifying underlying scales and chord progressions, distinguishing it from simpler pitch-detection tools. Users can feed it complete mixed tracks, isolated stems, or raw MIDI data. Results appear immediately in the interface's chord panel, with suggested harmonic alternatives based on detected tonality. The voice grouping feature automates voice leading during chord construction, which can inform arrangement decisions or simplify performance.
Scaler Detector occupies a practical middle ground between academic music theory tools and production utilities. It's most valuable for producers and composers working with unfamiliar material - whether licensing reference tracks, analyzing existing recordings, or experimenting with harmonic possibilities. The real-time feedback on MIDI input makes it suitable for live performance contexts where quick harmonic validation matters. Engineers remixing or reworking existing compositions will find it faster than manual transcription.
The accuracy of detection depends on harmonic clarity and polyphonic density. Complex, heavily processed, or atonal material may produce less reliable results. Compared to dedicated transcription software, Scaler Detector prioritizes speed and integration over note-level precision.
Scaler Detector comes included with Scaler 3 purchases, while standalone access requires separate licensing. For anyone using Scaler 3 already, it represents a meaningful capability addition at no additional cost.
Never Miss a Deal
We score every deal so you don't have to. Get the best ones in your inbox.