English: A toy organ with displacement sensitive keys.

A couple of days after her third birthday, Christina Mann was playing around with her father's wearcomp (wearable computer) with Nikon D2h and took some pictures, including this picture of the organ that she commonly plays.

This organ has small keys, suitable for a child's hand.

Additionally, the keys are displacement sensitive, i.e. the further the key is depressed, the louder is the sound. Thus the organ can be played quietly (i.e. without waking up mother) by pressing the keys lightly, and not pressing them all the way down.

There is also a separate global volume control that affects the amount of air flow into the entire organ, but the organ is less responsive (sluggish) when the air flow is turned down.

The sound is produced by small strips of metal that vibrate in the flowing air from an electric blower built into the organ.