As the cost of magnetic memory declined in the form of diskettes, the evolution of video game music on the Amiga, and some years later game music development in general, shifted to sampling in some form. It took some years before Amiga game designers learned to wholly use digitized sound effects in music (an early exception case was the title music of text adventure game "The Pawn", 1986). By this time, computer and game music had already begun to form its own identity, and thus many music makers intentionally tried to produce music that sounded like that heard on the Commodore 64 and NES, which resulted in the chiptune genre.