Studio 02 Progressions

Progressions

Roman numerals, genre context, and classic forms in any key — the harmonic vocabulary behind countless standards.

Key picker

Current key C Major (Ionian)

I–IV–V–I

I – IV – V – I

I – IV – V – I

Example: In C Major (Ionian): C – F – G – C

GenresFolk, country, rock, hymns, children's songs

OriginCommon-practice Western harmony; foundational in popular music since the 19th century.

HarmonyTonic (I) · Subdominant (IV) · Dominant (V) · Tonic resolution

The purest diatonic cadence: tonic stability, subdominant color, dominant tension, and return home. Countless beginner songs are built from these three functions.

  1. C C – E – G
  2. F F – A – C
  3. G G – B – D
  4. C C – E – G

I–V–vi–IV

I – V – vi – IV

I – V – vi – IV

Example: In C Major (Ionian): C – G – A min – F

GenresPop, rock, country, worship, 2000s–2010s radio hits

OriginClassical and church harmony reframed for looping pop songwriting; became ubiquitous in late-20th-century mainstream music.

HarmonyTonic (I) · Dominant (V) · Relative minor color (vi) · Subdominant (IV)

Shows how V lifts energy, vi adds relative-minor color without leaving the key, and IV supplies plagal warmth. The first progression many writers learn to transpose.

  1. C C – E – G
  2. G G – B – D
  3. A min A – C – E
  4. F F – A – C

I–vi–IV–V

I – vi – IV – V

I – vi – IV – V

Example: In C Major (Ionian): C – A min – F – G

GenresDoo-wop, early rock and roll, ballads, musical theater

OriginMid-century American vocal-group harmony and Tin Pan Alley ballad practice.

HarmonyTonic (I) · Relative minor (vi) · Subdominant (IV) · Dominant (V)

I to vi shifts the ear toward the relative minor; IV–V is classic subdominant-to-dominant setup. In a minor key the same degrees read as i–vi–iv–V — the minor doo-wop loop.

  1. C C – E – G
  2. A min A – C – E
  3. F F – A – C
  4. G G – B – D

ii–V–I

ii – V – I

ii – V – I

Example: In C Major (Ionian): D min – G – C

GenresJazz, bossa nova, standards, R&B, gospel jazz

OriginBebop and Broadway-era harmony; the default cadence in jazz pedagogy.

HarmonyPredominant (ii) · Dominant (V) · Tonic (I)

The jazz cadence: ii sets up V, and V resolves to I. Learn this loop in every key and you can read countless standards.

  1. D min D – F – A
  2. G G – B – D
  3. C C – E – G

I–IV–vi–V

I – IV – vi – V

I – IV – vi – V

Example: In C Major (Ionian): C – F – A min – G

GenresPop ballads, worship, singer-songwriter

OriginLate-20th-century pop songwriting; cousin to the I–V–vi–IV loop with a softer subdominant lead-in.

HarmonyTonic (I) · Subdominant (IV) · Relative minor (vi) · Dominant (V)

IV adds warmth before the vi color, then V drives back toward resolution — a common emotional arc in ballads.

  1. C C – E – G
  2. F F – A – C
  3. A min A – C – E
  4. G G – B – D

vi–IV–I–V

vi – IV – I – V

vi – IV – I – V

Example: In C Major (Ionian): A min – F – C – G

GenresPop, rock, EDM toplines, 2010s radio

OriginContemporary pop variant of the axis-of-awesome loop starting on vi.

HarmonyRelative minor (vi) · Subdominant (IV) · Tonic (I) · Dominant (V)

Starting on vi gives a melancholy lift before the familiar IV–I–V lift. Ubiquitous in modern pop production.

  1. A min A – C – E
  2. F F – A – C
  3. C C – E – G
  4. G G – B – D

I–V–IV–V

I – V – IV – V

I – V – IV – V

Example: In C Major (Ionian): C – G – F – G

GenresRock, blues-rock, stadium anthems

OriginBlues and rock reframing of the I–IV–V family with dominant emphasis.

HarmonyTonic (I) · Dominant (V) · Subdominant (IV) · Dominant (V)

V–IV motion adds bluesy tension before the final dominant push — great for chorus energy.

  1. C C – E – G
  2. G G – B – D
  3. F F – A – C
  4. G G – B – D

I–♭VII–IV–I

I – ♭VII – IV – I

I – ♭VII – IV – I

Example: In C Major (Ionian): C – A# – F – C

GenresRock, mixolydian pop, classic rock

OriginMixolydian and modal rock harmony; the flat VII is a borrowed color from the parallel minor.

HarmonyTonic (I) · Flat seventh (♭VII) · Subdominant (IV) · Tonic (I)

The ♭VII chord borrows mixolydian color — a staple of rock progressions and modal pop hooks.

  1. C C – E – G
  2. A# A# – G – C
  3. F F – A – C
  4. C C – E – G

I–vi–ii–V

I – vi – ii – V

I – vi – ii – V

Example: In C Major (Ionian): C – A min – D min – G

GenresJazz standards, show tunes, vocal jazz

OriginCircle-of-fifths voice-leading in functional harmony.

HarmonyTonic (I) · Relative minor (vi) · Predominant (ii) · Dominant (V)

A textbook turnaround: each step sets up the next until V wants to resolve home.

  1. C C – E – G
  2. A min A – C – E
  3. D min D – F – A
  4. G G – B – D

I–iii–IV–V

I – iii – IV – V

I – iii – IV – V

Example: In C Major (Ionian): C – E min – F – G

GenresPop, musical theater, film scoring

OriginFunctional harmony with mediant color between tonic and subdominant.

HarmonyTonic (I) · Mediant (iii) · Subdominant (IV) · Dominant (V)

The iii chord adds a surprising color between I and IV — common in theater and cinematic pop.

  1. C C – E – G
  2. E min E – G – B
  3. F F – A – C
  4. G G – B – D