Each of this beautiful USB flash drive includes an unique variation and individual recording of the generative composition "Shadows in Time". Each USB stick contains a 60 minute 24bit .wav file recorded out of a composition of over 18.000 minutes. It is based on four variations of the same 20 seconds loop modulating on three different layers, which are running against each other on a basis of millisecond variations. This creates a constant variation, which will make the usb sticks a unique piece of art which only exists one time. The original version of the recordings will be deleted after saving to the sticks.