Keyboard shortcuts

Play a piano sample on every key click and MIDI noteOn.

Option: user.pianoSound

Show heart counter; lose a heart on miss, gain one every 5-streak. Reset on game-over.

Option: user.gameMode

Show the ball-notes hint inside the answer panel on /app. Half of the hint TYPE pair behind the single Hints container on /preferences (B shortcut); at least one of the pair stays on, so the panel — and the Naming quiz question — is never empty. Hide via that control or by long-pressing the balls. Only consulted once `answerHintsChosen` is true — until then the screen width picks the default (narrow → off).

Option: user.showAnswerBalls

Show the on-screen piano keyboard inside the answer panel on /app. The other half of the hint TYPE pair (K shortcut; see showAnswerBalls). Hide via the Hints container or by long-pressing the keyboard. Only consulted once `answerHintsChosen` is true — until then the screen width picks the default (narrow → off).

Option: user.showAnswerKeyboard

Keep the answer panel (balls + keyboard) visible at all times, not only after Space-to-reveal or a wrong attempt. The H shortcut toggles it; B / K choose WHICH surface the panel holds (at least one stays on). V1 `o-0` parity.

Option: user.hintsAlways

Display piano fingerings (digits 1-5) on keyboard hints. Scales subject + singleNotes voicing only; mutually exclusive with hlType (engaging fingerings overrides scale tint).

Option: user.showFingering

One-note mode. Whatever the exercise draws — a chord, a scale degree, a progression step, a song chord — the RIGHT hand only has to play the chord root; nothing else about the question changes (the same chord is drawn, named and hinted). The left hand is unaffected: `leftPlays` still decides what it owes. Wins over `rootlessMode` when both are on (rootless drops the note one-note keeps); a ninja pattern still overrides both. Single-note questions are unaffected.

Option: user.oneNoteMode

How the question is rendered on /app. `chordNames` (default) shows the chord label (e.g. "Am7"); `staff` shows the notes on a music staff (VexFlow renderer). Toggled with the N keyboard shortcut. When `staff`, see the staff* sub-options.

Option: user.notationDisplay

How the question is rendered on /app. `chordNames` (default) shows the chord label (e.g. "Am7"); `staff` shows the notes on a music staff (VexFlow renderer). Toggled with the N keyboard shortcut. When `staff`, see the staff* sub-options.

Option: user.notationDisplay

Reveal the answer; once revealed, advance to the next chord.

Keyboard split — grade only one hand

Toggle the extended chord-info panel

Pick the Nth answer button (naming activity)

Toggle the chord-root highlight on the keyboard + staff.

Start single-note (melody) recording on a connected MIDI keyboard. The captured exid lands on Songs subject with single-note mode on.

Advance to the next chord.

Cycle the hand option: any → right → left → both.

Toggle the metronome.

Reset the session (counters, hearts, chord index) without reloading.

Switch between Jumper game and Piano practice.

Increase the metronome tempo by 1 BPM.

Decrease the metronome tempo by 1 BPM.

Set the inversion(s) to drill. ` or 0 = root, 1 = first, 2 = second, 3 = third. Press several keys quickly (within ~250 ms) to enable multiple inversions at once. Inversions the current chord type can't support are skipped.

Open the preferences page.

Return to the practice page.

Previous key (chromatic). Songs subject: transpose spec down a half step (adaptive — keeps letter naming clean).

Next key (chromatic). Songs subject: transpose spec up a half step (adaptive — keeps letter naming clean).

Previous key (circle of fifths). Songs subject: transpose spec down a perfect fifth.

Next key (circle of fifths). Songs subject: transpose spec up a perfect fifth.

Toggle between a major key and its relative natural minor.

Previous scale type.

Next scale type.

Toggle major / natural minor on the same tonic.

Previous inversion (single selection).

Next inversion (single selection).

Previous key (chromatic).

Next key (chromatic).

Previous key (circle of fifths).

Next key (circle of fifths).

Toggle between a major key and its relative natural minor.

Previous scale type.

Next scale type.

Toggle major / natural minor on the same tonic.

Previous inversion (single selection).

Next inversion (single selection).