Song Workout Assistant
Train your ear to identify song keys and chord progressions
Note Input
Piano Keyboard
Selected Notes
Click piano keys or buttons below to add notes
Chord Progression
Add chords to build a progression
Analysis Results
Detected Chord
Possible Key
Play 3 or more notes to detect possible key
Progression Analysis
Likely Key:
-
Roman Numeral Analysis:
Common Progressions:
I - V - vi - IV
Popular in pop music (e.g., "Let It Be", "Someone Like You")
ii - V - I
Jazz standard progression
Music Theory Reference
Chord Types
Major (C)
Root, Major 3rd, Perfect 5th (C-E-G)
Minor (Cm)
Root, Minor 3rd, Perfect 5th (C-E♭-G)
Dominant 7th (C7)
Major triad + Minor 7th (C-E-G-B♭)
Circle of Fifths
How to Use
Play notes on the piano or click note buttons to build a chord
The app will analyze possible chords and keys
Build a chord progression by adding multiple chords
Analyze the progression to see likely keys and patterns
Ear Training Tip
Try to sing the root note of each chord to help identify the key. The note that feels most resolved is often the tonic (key note).