Yamaha PSR-4500 Portatone Keyboard (1989)
WOLF retro DESIGN REVIEW. 1st June 2022. This retro keyboard want to launch itself like a spaceship. The PSR-4500 may be over 30 years old but still holds a lot of bang in its design. A retro review looks at products that are at least over ten years old from a present-day WOLF design perspective. While…