Name, spell, voice, and analyze chords

How chord jobs are decided here

A chord almost always starts as an ambiguous object: the same three or four notes can often be named more than one defensible way, and a bare interval like a fifth can imply several different qualities depending on what is left out. Tools in this category treat that ambiguity as evidence to show, not a problem to hide. The current foundation release anchors the category with the Chord Identifier, which takes a set of notes and returns the chord names that set can actually support, ranked by how completely they match, along with the omissions and additions that explain why a runner-up candidate exists.

Tools in this category

• Chord Identifier

  Name the chord (or chords) a set of notes can form, with the evidence behind it.

• Chord Builder

  Build a correctly spelled chord from a tonic and a chosen formula, then hear it.

• Chord Spelling Checker

  Audit entered tones against a declared chord symbol and explain every mismatch.

• Chord Symbol Parser

  Unpack a chord symbol into root, quality, extensions, alterations, and bass.

• Chord Voicing Generator

  Generate explainable playable piano voicings from a chord and range constraint.

• Chord Function Analyzer

  Explain a declared chord’s likely harmonic function in a supplied key.

• Chord Substitution Finder

  Compare bounded substitution options for a chord, each with a stated reason.

• Bass Note to Chord Candidates

  Identify chord candidates from a declared bass note plus additional notes.

• Chord Color Tone Explorer

  Add, omit, or alter a chord tension and compare the before/after tone set.

• Chord Inversion Explorer

  See which chord tone lands in the bass at each inversion.

• Chord Scale Matcher

  Find scale collections that contain a chord and explain altered-tone tradeoffs.

• Guitar Chord Voicing Explorer

  Map a declared chord onto a chosen guitar tuning and fret range.

• Piano Chord Voicing Explorer

  Allocate a declared chord between the hands under a chosen voicing family.

• Cadence Finder

  Flag cadence candidates in a parsed progression under a stated key.

• Modal Interchange Explorer

  Compare borrowable chord options from a parallel mode sharing the same tonic.

• Secondary Dominant Finder

  Construct the applied dominant that resolves to a chosen target chord.

• Reharmonization Explorer

  Generate bounded alternative chords for one slot under melody constraints.

• Common Tone Modulation Finder

  Find shared pitches and chords that can bridge two declared tonal areas.

• Voice Leading Comparator

  Compare pitch movement between two declared voicings.