Scale Navi - How to Use

Select a Key

From the menu at the top of the screen, select Major or Minor, then choose the key you want to practice.

Example: C Major, A Minor, etc.

Free version: 12 basic keys (6 Major, 6 Minor). Upgrade version: Access all 24 keys.

For minor keys, you can choose from 3 types of scales:

• Harmonic Minor
• Melodic Minor
• Natural Minor

Check Fingering Numbers

The scale for the selected key is displayed with fingering numbers for each note.

Right hand is shown in blue, left hand in red.

Starting position is hexagon-shaped, turnaround position is seal-shaped, and others are circles. The shapes differ because fingering numbers may vary between start and turnaround positions.

White-outlined numbers indicate repeat fingering. The keyboard displays 1 or 2 octaves. For parts of the playback range that aren't shown on the keyboard, repeated fingering patterns are indicated with white-outlined numbers. For example, when the keyboard shows 2 octaves but you're playing 4 octaves, the 3rd and 4th octaves use the white-outlined (repeat) fingering.

When finger crossing highlight is enabled, positions where finger crossing or thumb-under occurs are visually emphasized. The most important technique points in scale practice are clear at a glance.

Use Playback Function

Set the tempo (20-200 BPM) and octave range (1-4), then tap the play button to play the scale.

The scale will be played, and the keys being played will be highlighted.

Playback Settings:

• Octave Range: Specify the range of the scale to play (1-4 octaves)
• Tempo: Specify the playback tempo (20-200 BPM)
• Repeat: Specify whether to repeat the playback
• Pre-count Beats: Specify the count before playing the scale (0-8 beats). Pre-count only works when using metronome
• Use Metronome: Specify whether to include metronome sound
• Beat Pattern: Select the metronome beat pattern (Downbeat/Both/Upbeat)
• Highlight Finger Crossing: Specify whether to visually emphasize finger crossing and thumb-under positions
• Always Play Sound: Specify whether to mute sound in silent mode (Configurable in settings)

Use Metronome

Select time signature (2/4, 3/4, 4/4, 6/8), tempo (20-200 BPM), and beat pattern (Downbeat/Both/Upbeat) to activate the metronome.

If you close the dialog while the metronome is playing, it continues in floating display mode. It also supports background playback.

Free version: Background playback is limited to 3 minutes. Upgrade version: Unlimited.

History Feature:

Frequently used tempo settings are automatically saved and can be reused from history.

Track Your Mastery

Tap the floating status button at the bottom-left of the screen to set the mastery level for the currently selected key.

Choose from 4 mastery levels:

• None: Keys you haven't practiced yet
• Struggling: Keys you can't play well yet
• Improving: Keys you're almost getting right
• Mastered: Keys you can play confidently

Your mastery levels are displayed with colored borders and icons on the key selection screen, letting you visually track your progress.

Filter Keys

Tap the search button on the key selection screen to open the filter view.

Filter Types:

• Mastery Filter: Filter by status — None, Struggling, Improving, or Mastered
• Minor Type Filter: Filter by Melodic Minor or Harmonic Minor

When a filter is selected, only matching keys are displayed. This is useful when you want to focus on practicing your weaker keys.

Filter state is automatically remembered and applied the next time you open the app.