The Objective
Move beyond the Major Scale. Construct scales in specific Diatonic Modes (Dorian, Phrygian, etc.) and master the full chromatic keyboard in the Bonus Round.
Part 1: The Mode Cycle
Unlike the Beginner Game, you must validate every step.
1. Insert
Drag & drop a black key to complete a new scale in your mode.
2. Check Scale
Press the button. System verifies the last 7 notes played.
3. Tonic
Press the tonic key to confirm and lock the scale.
Part 2: The Bonus Round
Validate the final "Orange Key" across three tasks.
Check Scale
The final Orange Key is placed automatically. Verify it works.
Color Bar
Assign the correct key signature color to the Orange Key.
Last Tonic
Identify which scale starts on the Orange Key.
The "Excluded Five" Logic
Every Diatonic Scale includes 7 notes and excludes 5.
Validation Logic
The Check Scale button uses a subtractive algorithm. It doesn't check if you played the "right" scale; it checks if you avoided the "wrong" notes.