Yamaha PSR-9000 Pro

The Yamaha PSR-9000 Pro is a professional-level arranger keyboard released by Yamaha in 2000. It is a powerful workstation that combines a synthesizer, sequencer, and arranger into one instrument. It has been used by many professional musicians, including Herbie Hancock, Quincy Jones, and John Legend.

The PSR-9000 Pro has a wide range of features, including a 61-key velocity-sensitive keyboard, a 16-track sequencer, a 16-part multitimbral synthesizer, a built-in effects processor, and a variety of real-time controllers. It also has a large selection of sounds, including acoustic and electric pianos, organs, strings, brass, and drums. Additionally, it has a variety of performance features, such as a built-in arpeggiator, a chord recognition system, and a phrase sequencer.