HOW TO PLAY

1. Press ▶ Play the tune. Each circle is one note, and it lights up as it plays.
2. One note is wrong! Tap the circle you think sounds wrong. On early cases you can press 🎵 Hear it right to compare.
3. Then fix it: tap the xylophone bars to try notes, and press ✔ Fix it when you find the right one.
4. Some cases have a missing note (a dashed circle): find which bar fills the gap. Later cases hide two sneaky notes!
5. Each case has 3 tunes. Solve them with no mistakes for ⭐⭐⭐. Stars unlock new instruments.

CASE CLOSED!