Webeleon

Pillar · Music Theory

Music Theory

Harmony, melody, and rhythm in plain language — the why behind the music, written so it actually sticks.

7 articles

Theory

The Andalusian cadence and other minor moves worth stealing

The Andalusian cadence is four chords walking downhill — i–♭VII–♭VI–V. Here is how each chord works, where you have heard it, and a few more minor-key moves to steal.

7 min read · Aug 04 2026

Theory

Borrowed chords: minor colors in a major key

How the parallel minor lends a major key four darker chords — iv, ♭VI, ♭VII and ♭III — what each one does emotionally, and the songs that lean on them.

7 min read · Jul 24 2026

Theory

ii–V–I everywhere: the progression hiding in your playlists

The ii–V–I is the most common cadence in Western harmony. Here is how it works in C, how to move it to any key by function, and where it keeps hiding.

7 min read · Jul 14 2026

Theory

A progression isn't a song

Four looping chords are one section of a song, not the song. What bars, phrases, repetition, and forms actually do — and how Homechord v3 came to model them.

8 min read · Jul 10 2026

Theory

An arpeggio is a chord taken apart

An arpeggio is just the notes of a chord played one at a time. Here is how to build one from a triad, name its tones, and find it on the fretboard.

8 min read · Jul 10 2026

Theory

Voice Leading in Four Parts

How to move four independent voices smoothly between chords — common-tone retention, contrary motion, and the small steps that keep a progression singable.

8 min read · Jun 24 2026

Theory

The Circle of Fifths, Practically

A working musician’s tour of the circle of fifths — reading key signatures, finding closely related keys, and using the wheel to plan modulations on the fly.

8 min read · May 22 2026