 Planephones were conceived by composer Michelangelo Lupone, as art installations (1997), and are the result of studies on the vibrational qualities of materials with the collaboration of CRM-Centro Ricerche Musicali.Planephones are works of art which integrate form, matter, sound, music language and expression.They integrate the relevant aspects of sound and visual perception, creating new modes of fruition of the work of art.