Speech or musical performance is electronically analyzed using DSP techniques and is compared to a stored text script or musical score, to enable display of and automated sequencing through multiple pages of the stored script or score. The first antenna may be configured to receive first and second diversity received signals. The process includes producing a slag by-product and blending the slag by-product with a liquid binder system to form the agricultural blend, the slag not being stainless steel slag. Inflation of the vehicle rear side wall of the airbag toward the driver is regulated via the tether.