 The Ta-Ta-Ta-Taaam example is a bit simplified, so here is a real-life and very evocative case study, an installation by the British artist, Katie Peterson. The installation is an empty room with a grand piano in it, which plays automatically. It plays a truncated version of Beethoven’s Moonlight Sonata. The title of the installation is ‘Earth-Moon-Earth (Moonlight Sonata Reflected From The Surface of The Moon’ (2007). Earth-Moon-Earth is a form of transmission (between two locations on Earth), where Morse codes are beamed up the moon and they are reflected back to earth. While this is an efficient way of communicating between two far-away (Earth-based) locations, some information is inevitably lost (mainly because some of the light does not get reflected back but it is absorbed in the Moon’s craters). In ‘Earth-Moon-Earth (Moonlight Sonata Reflected From The Surface of The Moon’ (2007) the piano plays the notes that did get through the Earth-Moon-Earth transmission system, which is most of the notes, but some notes are skipped. Listening to the music the piano plays in this installation, if you know the piece, your auditory mental imagery is constantly active, filling in the gaps where the notes are skipped.