: Version 4 utilizes a neural network trained on thousands of songs. It combines a refined "chromagram"—a visual representation of the 12 musical notes—with a statistical chord progression model to track key changes dynamically without requiring a manual reset.
The most annoying bug—random phantom power clicking on input 3—was squashed in the Spring 2025 UPD. hornet songkey mk4 upd
: Detect keys and chords directly from MIDI tracks. : Version 4 utilizes a neural network trained
Hornet SongKey MK4 represents a significant leap in utility for producers, DJs, and remixers who need to identify the musical DNA of a track instantly. Building on the success of its predecessors, the MK4 update refines its core mission: delivering accurate, real-time key, chord, and tempo detection with a streamlined workflow. Advanced Detection Engine : Detect keys and chords directly from MIDI tracks
: It supports MIDI input for analyzing MIDI tracks and MIDI output to record detected chords directly into your DAW's piano roll.