economics and tastes initially determined which kind of music was available on each format. recording company executives believed upscale classical music fans would be eager to hear a beethoven symphony or a mozart concerto without having to flip over multiple, four-minute-per-side 78s, and that pop music fans, who were used to listening to one song at a time, would find the shorter time of the 10-inch lp sufficient. as a result, the 12-inch format was reserved solely for higher-priced classical recordings and broadway shows. popular music continued to appear only on 10-inch records.