Using an imaging system, an optical MEMS devices is imaged so that in combination with an actual one or more other optical MEMS devices, or images thereof, a single virtual optical MEMS device is formed that has the size of each of the optical MEMS devices combined. A rotating member, for example a tire having a resilient main body and integral resilient paddles formed thereon, is rotatably supported on the frame within an upright plane oriented transversely to the forward working direction. A bearing assembly is disposed between the knuckle and spindle hub to allow rotation of the spindle hub. The invention is usable in the field of prerecorded-music interpretation.