On the Subject of Listening to Piano Keys

Forgot to look at the music? Guess you'll have to play it by ear.

A Listening Piano Keys module consists of a cassette tape, a play button, a toggle switch and a piano keyboard.

Press the ▶ button to hear a familiar tune. To disarm the module, play the tune back in “Submit Mode”.

Press the switch to toggle it left or right.

When the switch is to the left:

• The module is in “Practice Mode”, and no interaction with the module will cause a strike.

When the switch is to the right:

• The module is in “Submit Mode”. When ready, enter this mode and play the tune on the piano.
• As soon as the first note is played while in this mode, the module is locked to “Submit Mode” until either a strike is gained or the module is solved by correctly submitting the entire tune.
• Playing an incorrect note at any point while in this mode will cause a strike.

Notes:

• On a strike, the tune will be re-selected and the module will automatically re-enter Practice Mode.
• Rhythm, as well as the number of times a note is immediately repeated, do not matter.
• The ▶ button is always safe and functional.
• The tune does not need to be submitted in the same key as heard as long as the entire tune still fits on the keyboard.
• Beginning on a note that puts part of the song out of range will cause a strike.
• After the module is solved, each press of the ▶ button will cause the module to randomly select a tune to play.
• After the module is solved, absolutely no interaction with the module will cause a strike.