The practice arena

Make theory automatic.

Sixty-second sprints across 12 arenas, a tempo rating that only rises when you get faster and stay accurate, boss rounds to conquer, and boards where your whole class competes.

Get your Theory TempoUse it with a class

60-second sprints

Beat the clock

  • 60 seconds of thinking time. The clock pauses while you read feedback, so mistakes teach instead of cost.
  • Right answers in a row build a ×2, ×3 and ×4 combo. A miss drops one tier, never the whole streak.
  • Questions get harder after three right in a row and ease off after two misses, so every sprint sits at your edge.
×1×2×3×4

5, 10 and 20 right in a row

Theory Tempo

Your speed, as a tempo marking

  • Your rating is how fast your theory plays, in beats per minute, from your best recent sprints.
  • Ten ranks, from Grave to Prestissimo at 200 BPM, the pace of a fluent musician.
  • Guessing does not help: accuracy is built into the rating.
  1. Grave0+
  2. Largo40+
  3. Adagio60+
  4. Andante80+
  5. Moderato100+
  6. Allegretto115+
  7. Allegro130+
  8. Vivace150+
  9. Presto170+
  10. Prestissimo200+

Race your ghost

Chase your personal best

  • Your best run plays back live, point for point, while you sprint.
  • A daily warm-up drills your slowest and shakiest items, with double XP for the first one each day.
  • A mastery map shows every note, key and chord as mastered, learning or shaky.

You540 pts

Your best (ghost)480 pts

New personal best in sight

Boss rounds

Earn your certificate

  • Each arena's boss round opens once you reach 100 BPM.
  • 12 of the hardest questions, each on its own 9-second clock.
  • Get 10 right and the arena shows a crown: certified.

Key Signatures: certified

11 of 12 right · boss round passed

Class competitions

The whole class, racing together

  • The main board ranks improvement this week, not raw speed, so a beginner can beat the class star.
  • Teachers set class challenges, such as everyone to 130 BPM in Key Signatures, and watch the class get there.
  • Boards use stage names only, and stay off until the teacher turns them on.

Class challenge

Everyone to 130 BPM in Key Signatures

0 of 31 there

Most improved: Dolce Motif+34 BPM

Global rankings

See where you stand worldwide

  • Your settled tempo is placed among every player in that arena.
  • “Faster than 82% of players in Key Signatures” is a goal you can see moving.
  • Only settled ratings count, so a lucky sprint cannot top the charts.

Faster than 82% of players

Key Signatures · all players

12 arenas

Each one drills skills taught in the course, starting from the lesson shown.

From lesson 1

Note Names

Read any note on sight, treble and bass.

From lesson 2

Rhythm Values

Notes, rests and beats without counting on your fingers.

From lesson 3

Time Signatures

Fit the metre and finish the bar at a glance.

From lesson 6

Sharps & Flats

Accidentals, enharmonics and the black keys.

From lesson 8

Scales & Modes

Spell any scale and name any mode without counting steps.

From lesson 9

Key Signatures

Name the key the moment you see the signature.

From lesson 14

Intervals

Size and quality of any interval at a glance.

From lesson 17

Transposition

Move notes, keys and melodies by any interval.

From lesson 18

Chords

Triads, sevenths and Roman numerals on the fly.

From lesson 18

Chord Building

Spell triads and sevenths, and find the chord on any degree.

From lesson 20

Cadences & Progressions

Name the cadence and the progression on sight.

From lesson 23

Figured Bass

Read inversions and their figures in any key.

Ready to find your tempo?

The arena is included in every membership, and every student in an Educator class gets it free. US$39.99/month for a whole class.

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