Yamaha's piano brand was declining, losing 10% of its 40% global market share each year. To revitalize the brand, Yamaha developed the Disklavier piano in 1988, which functions like a regular piano but also records performances digitally for playback or editing. This innovative product stopped the brand's decline and gained a 20% market share after 3 years. More broadly, the presentation discusses revitalizing declining brands through product differentiation and innovation rather than price cuts, in order to improve profits and brand equity over the long run.