Ionian/Lydian Harmonic Analyzer

An analysis tool for musicians, based on an advanced harmonic model.

How It Works

1. Prepare a song in .musicxml format. Make sure it contains chord symbols.
2. Click the "Continue to the GEM" button below.
3. Inside the Gem, you will be prompted to upload your file. The analysis will be automatically generated in a clear and detailed table.

Fundamental Principles

This document describes a harmonic analysis model aimed at simplification and practical application, particularly in the context of jazz and modern improvisation. The system is based on the reduction of all diatonic harmonic functions to a binary structure, governed by two archetypal sound poles: the Ionian (Major) sound for rest and the Lydian sound for tension.

2.1. The Binary Subdivision of Harmonic Functions

The chords built on the seven degrees of the major scale are grouped into two functional macro-categories:

• Group 1: REST (Tonic Area)
  • Function: To generate stability, resolution, and a sense of "home".
  • Degrees Included: I, III, VI
• Group 2: TENSION (Subdominant and Dominant Area)
  • Function: To generate movement, expectation, and the need for resolution.
  • Degrees Included: II, IV, V, VII

2.2. Definition of Modal Archetypes

Each functional group is associated with a single representative "sound," which serves as a model for the entire group.

Function	Representative Degree	Archetypal Sound/Mode
REST	I degree (e.g., Cmaj7)	Ionian (Major Scale)
TENSION	IV degree (e.g., Fmaj7)	Lydian

This analyzer doesn't just label chords; it interprets their harmonic function based on an evolved model. It recognizes large musical "patterns" (Blues, Rhythm Changes, Turnarounds) and assigns a sound "archetype" to each chord, showing how this archetype changes its "texture" (from Lydian to Melodic Minor, Diminished, etc.) based on the context, just like an expert musician would think.