Chord voicing explorer.
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Mode, register and voice movement

Major and minor are useful first practice categories, but a recording may involve modal ambiguity, extensions, chromatic notes or a bass that changes the apparent root. This tool deliberately begins with simple triads. The point is to hear how inversion and register change the movement between notes while the pitch collection stays recognizable. Do not assign the selected practice key to the original track. When writing an adaptation, sing the foreground contour before matching it to your own chords, and check every important overlap by ear. Two parts sharing a theoretical label can still compete because their timbres, registers or phrase rhythms occupy the same foreground.

A useful session with this tool

The same three pitch classes can occupy different registers, and that change can alter how a chord connects to its neighbour. This explorer gives you a practice root, five scale choices and three inversions. Choose major, natural minor, Dorian, Mixolydian or Phrygian; the full seven-note scale appears above the chord display. The tool highlights the tonic triad on a compact keyboard and plays an ascending practice scale followed by two original sustained chords when you ask. Both the tonic and fourth-degree chord are derived from the selected scale. The exercise makes register and movement inspectable without suggesting that these are the chords of the commercial song.

1. Choose a root and practice scale. Compare natural minor with Dorian: their tonic minor triads match, but Dorian raises the sixth scale degree and changes the fourth-degree chord from minor to major. Compare major with Mixolydian to inspect the lowered seventh, or natural minor with Phrygian to inspect the lowered second. The plain synthesized tones keep a complex preset from becoming the main attraction.
2. Switch from root position to first inversion. The lowest note moves above the other chord tones, changing both the bass note and the register of the stack. Compare again at the same playback level. Second inversion moves the next lowest note upward as well. Notice whether your attention follows the bass or the upper note.
3. Listen to the ascending scale before the two chords. The scale lets you hear modal notes that the tonic and fourth-degree triads may not contain. Then read the sorted-voice motion values: the absolute semitone distances between corresponding low, middle and high chord notes. These values describe one comparison, not a search for the smoothest possible voice leading or a rule that every voice must move as little as possible.
4. Write down one register choice that supports the scene in this article and export the notes. In your DAW, create a new progression and keep one upper voice steady while another moves. For DJ listening, use this as ear training; verify harmonic compatibility against the actual tracks rather than relying on a practice root selected here.

A chord symbol describes pitch relationships but does not fully describe a sound. Bass register, spacing, duration, articulation and timbre all contribute to the effect. This tool holds many of those variables still so that an inversion is easier to notice. If a change sounds more dramatic on your speakers than on headphones, check whether low notes are being emphasised by the room. Keep your exported conclusion concrete: name the note that moved and describe the perceived effect.

The explorer does not identify a song key, transcribe harmony, generate a copyrighted melody or evaluate every possible inversion and octave placement. Scale labels follow diatonic letter spelling rather than using the same sharp names in every key. Export original practice MIDI to move one scale bar and two chord bars into your DAW at the selected practice tempo. Choose an instrument after import; the file contains teaching notes from your settings, not a transcription of the reference.