Chordly — Chords & Scales

Chordly works out every chord shape instead of storing one.

Give it a chord and a tuning and it searches the fretboard: every fret on every
string whose note belongs to the chord, filtered down to what a hand can
actually reach, ranked, and spread into five positions up the neck. Change the
tuning to DADGAD, or switch to a ukulele, and all of it is recomputed. There is
no table of fixed shapes inside the app, which is why nothing in it can be out
of date or wrong for your instrument.

Every dot on a diagram is labelled with what it is — root, third, fifth,
seventh — and coloured by its job: brass for the root, teal for a chord tone,
plum for a tension. Once you have read that code once, you can read any diagram
in the app without a legend.

The fretboard map puts a whole scale across twelve frets, names every note, and
cuts it into the five familiar boxes. The circle of fifths is a dial you can
turn, and turning it moves the key: the diatonic chords, their sevenths, their
Roman numerals and their functions all follow. A capo tool shows you the shape
you play and the chord that actually sounds, side by side.

Guitar, ukulele, bass, mandolin and piano, plus any custom tuning you type in.

Chordly contains no songs. No titles, no artists, no chord sheets, no tabs, no
lyrics — chords and scales are facts that anyone may publish, but an arrangement
is someone's work and does not belong in a reference app. The progressions in it
are the ones you write, described by their numerals.

It requests zero Android permissions. It has no microphone, so there is no
tuner and it never listens; reference tones are synthesised and play outward
only. It has no network code at all.

WHAT IS IN IT
• 60 chord qualities, each one an interval formula
• 30 scale families, with every mode derived by rotating the pattern
• 22 tuning presets across five instruments, plus any tuning you type
• A fretboard map, the five CAGED boxes, and a draggable circle of fifths
• A key explorer with Roman numerals, functions and borrowed chords
• A capo transposer that names the shape and the sounding chord separately
• Progressions you write yourself, with export and import
• 62 drawn reference pages: explainer cards, reference sheets and key pages
• A glossary of 160 theory terms and 50 worked examples