The Yamaha PSR-9000 refers to a model of Yamaha keyboard from the PortaTone PSR series. It is not a type of vehicle and thus, does not contain an engine.
Bout 40 bucks at a pawnshop..
One can use a Yamaha PSR 175 for a computer. Keyboard a required for a computer. Also, one can purchase the keyboard for a very cheap price at Staples.
the numbers
The Yamaha PSR is a motorcycle. PSR stands for Power Stands Racing, which is a company that sells parts and accessories for standard and racing motorcycles.
The Yamaha PSR-31 keyboard was first introduced in the early 1980s, so it is around 40 years old as of 2024.
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There are several advantages of the Yamaha PSR keyboard. One advantage is that the keyboard features USB audio recording. Another advantage is that the keyboard also has realistic, built-in accompaniments.
the recent Yamaha e423 which features more new sounds
via midi interface and cable
From: http://www.yamahamusician.com/yamaha-psr-e403.html - Some of you may be wondering: What's the difference between the PSR-Exxx and YPTxxx models? Well, the YPT designation is used for the Yamahas sold at Costco, Wal-Mart, etc--mass retailers, while, the PSR-E names are found at Yamaha dealers, such as, Guitar Centers and online Yamaha dealers. It's the same exact keyboard just with different names.