Harmony · groove · MIDI · classroom

Chord Lab

Hear a progression, see why it works, and play it back.

Key

C major

Mode · voice

beginner · Piano

Layout

…·1/1 cols

Ready

C major · press play

Tempo96 BPM
Volume0 dB
4/4BassCount-inPiano
Ready

Style packs

One tap loads genre defaults — meter, swing, pattern, voicing, and a real progression.

Practice mode

Meter, groove, voicing, and labels — from first chords to session prep.

Chord labels
Time signature
Swing0%
Dynamics100%
Capo (diagram shapes)Open

Capo shifts frets/diagrams only — sounding key stays C. Use transpose (±½) on Key to move the whole song.

Instrument

Sequence

C – G – Am – F

Repertoire pack

Style-based progressions across genres — load, practice, make them yours. 18 loops.

Max difficulty

Radio four-chord

Same functions as thousands of chart hits. Master this loop, then transpose.

  • Loop at half speed until changes are silent and clean.
  • Sing a simple melody on the major scale over it.
  • Move to G and A without changing numbers.

Progression presets

Progression

4 chords · 4 bars · 0:10 · close

Edit chord 1

C (I · 1)

C major · tonic

C3 · E3 · G3 · C4 · bass C3

bars

Use Harmony lab for V/x, borrowed ♭VII, slash bass, and substitutions.

Pro desk

Chord-scales, guide tones, form, reharmonization, and key changes — applied to the progression you already have.

Scale for C

Ionian (major)

Tonic major. 9 and 6/13 sparkle; 11 rubs the 3rd.

play 9play 13avoid 11

Guide tones

C

E

3rd · 7th

G

B

hold G

Am

C

3rd · 7th

F

A

hold A C

Form · 4 bars

Loop
4b

C G Am F

Reharmonize the loop

Modulate

Piano keys

C major · tap keys

Root Guide tone Chord toneInteractive · C3–B4

Hand demos

Animated finger order for the active chord — watch, then place.

C · step 0/4

  1. Watch fingers land in order (1 = index … 4 = pinky).
  2. Pause the demo and mirror on your instrument.
  3. Use MIDI scoring or change drill to test yourself.

Visual chord diagrams

C major

Piano · one octave

Hold: C3 · E3 · G3 · C4

○ open string× muted rootFinger numbers inside dotsSounds: C · Diagrams: C

What next?

Beginner-friendly moves after C.

Key & mode

Tip

Try a Style pack, or open for Bluetooth MIDI. Layout follows your screen size (up to 5 columns on ultrawide).

Save · export · charts

Browser library plus printable Nashville / lead-sheet charts.