About this game
A key signature changes notes for the whole piece, and it's easy to forget. In this free game you identify notes in key signatures with up to two sharps (F#, C#) or two flats (Bb, Eb), so applying the key signature becomes automatic.
How to play
- Choose how long you want to play (30, 60, or 120 seconds) and press Start Game.
- Look at the question on screen and tap the answer you think is right.
- You'll see right away if you were correct. Your score and streak go up with every right answer.
- When time runs out you'll see your score. Play again to beat it, or sign in to save your results.
Tips for beginners
Before each answer, glance at the key signature. If it has an F#, every F in the piece is F#, in every octave, unless a natural sign cancels it.
For teachers and parents
For students moving beyond C major. Use it before introducing pieces in G, D, F or Bb major.

Practice more in 100 Easy Piano Songs for Beginners: Folk, Classical, Holiday & Jazz Songbook
More drills and games on the same skills for piano students.
Frequently asked questions
- What is a key signature?
- The sharps or flats at the start of each line of music. They apply to those notes throughout the piece.
- Does a key signature apply to every octave?
- Yes. A sharp or flat in the key signature affects that note in every octave.
- Is this game free?
- Yes. No account or download needed.