Consider mobility and flexibility to be part of musical instrument design architecture and playing the instrument as a choreography with 3D installation. I-Musika:MIME (Mobile Interface Musical Expression) is a multidimensional interface that seeks to integrate at least three "disjoint neighborhoods" or entities: "keys, instruments and players". Based on the frequency resonating structures modeling paradigm, I-Musika:MIME transfigures the properties and geometry of musical instrument and unifies the excitation methods for different instruments, thus offering multiple (distinct) designs for a single instrument or a single design for multiple (distinct) instruments via an interface that provides contact free playing. As such, not only it transforms the keys-instruments-players relationship and creates new performing style that is insensitive to posture, hand and finger positioning, it creates a new audience-player-instrument profile. Harnessing the properties of this interface, I-Musika:MIME, the new instrument is portable with an artistic physical appearance or visual representation as desired. It can be modified and achieved as you pleased to add another dimension to musical pleasure.