• Play the calculation, including invalid keys, to hear the result.

• Uses high quality piano samples.

• Touch the scale display to play notes in the result.

• Glissando support by sliding finger across the scale display horizontally.

• Notes glow as they sound to provide easy tracking of pitches.

This is the first update for Key Calculator. It adds more functionality by allowing the user to interact with the result that has been calculated. Implementing CD quality piano samples, this update really helps the user along to a better understanding of the language of music.