Key Signature Quiz
A key signature is the cluster of sharps or flats after the clef — it tells you which notes are altered throughout a piece and which key you are in. Reading them instantly speeds up sight-reading, transposing, and improvising. This quiz shows a signature on the grand staff; tap the major or relative minor key to match it.
Identify the key from its signature. Bronze, silver, and gold mastery tiers track your progress across both major and relative-minor modes.
Tap the root of the major key (e.g. G major signature → G).
3 keys in this level · 10-question session
MIDI
Microphone
Touchscreen and mouse work without setup. MIDI input requires Chrome, Edge, or Opera. Microphone works in any modern browser; play one steady note for ~½ second to register.
How to use
- Read the key signature shown on the staff — note where the sharps or flats sit.
- Count how many sharps or flats there are and recall their fixed order.
- Name the key by tapping its root: the major key, or its relative minor when minor mode is selected.
- Check the answer and feedback to confirm whether you were right.
- Repeat across levels and both modes to build instant, automatic recognition.
Related Tools
What Am I Playing?Play, click, or type and get the name live — notes, intervals, chords with inversions, scales, and modes.Virtual PianoPlay a full 88-key sampled piano in your browser — no app, no login required.Chord BuilderWatch any triad get built one semitone at a time — major, minor, diminished, augmented.Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Scale DrillPlay scales with MIDI feedback — correct notes light up, wrong notes are flagged immediately.Circle of FifthsVisualize key relationships, relative minors, and key signatures.Interval TrainerIdentify intervals by ear — perfect 4th, major 6th, tritone, and every step in between.Note ReadingFlash-card drill for reading notes on treble and bass clef at speed.Rhythm DrillTap-input rhythm training — quarter notes through sixteenth-note subdivisions.Chord Progression GeneratorBuild and hear progressions in any key — I–IV–V–I, ii–V–I, and dozens more.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Play AlongFollow a scrolling score with MIDI feedback — tracks your timing, pitch, and accuracy.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.MIDI CalibrationMeasure your MIDI keyboard’s round-trip latency and dial in the timing offset for accurate play-along feedback.Skill DiagnosticA guided assessment that maps your strengths across theory, reading, rhythm, and technique.MetronomeKeep a steady tempo from 40–240 BPM with tap tempo and an accented downbeat.Printable KeyboardDownload a print-ready piano keyboard diagram — label notes, sharps, and flats.