instrument.games

About Two Octave Naturals

Expand up and down the staff without ledger lines just yet.

Part of Sight Reader on instrument.games. It runs in the browser, scores every run, and needs no account to play.

How to approach it

  • Use both hands to cover wider ranges confidently.
  • Watch the pointer to time your strikes precisely.
  • Keep your reading steady even as notes jump around.

What the 3 rounds cover

Middle Lines

Focus on treble line notes from F to B.

Middle register · 4 notes: F4, G4, A4, B4

Upper Treble

Shift higher without ledger lines yet.

4 notes: C5, D5, E5, F5

All Naturals

Mix all natural notes across the two octaves.

15 notes, from C4 to C6

More Sight Reader levels

Treble Staff Basics

Spaces, lines, then both together to build reading confidence.

Mallet Octave Explorer

Master a full run of natural notes — one bar per letter, F to E.

Ledger Line Intro

Add the low C and prepare for presets and MusicXML patterns.

Flat Notes Focus

Introduce flats and alternative spellings across the staff.

Full Staff with Flats

Mix naturals and flats across treble with fluid motion.

Sharp Accents

Sharps join the game – ledger lines and speed increase.

Advanced Ledger Reading

Mix wide ledger lines with both sharps and flats.

Accidental Mastery

Blend all accidentals with ledger work for fluency.

Level by Josh Stovall · Published November 22, 2025