KeyByKey is a browser music game built around listening to a short tune and reproducing it on a piano keyboard. The daily challenge provides an example recording and highlights the starting note. Players then select the keys they think match the melody, using their ear and memory rather than reading a score.
The welcome screen says attempts are unlimited, and the completion screen reports the number used before inviting the player back for the next daily challenge. The interface also offers practice with another tune. Its focus is a small listening puzzle, not a full music-production environment or a structured instrument course. A player can use it for a brief ear-training-style activity while treating success in the game as one narrow exercise rather than a complete assessment of musical skill.
