From the Gary Brooker collection AA
A letter of provenance ca be provided signed by Gary's widow Franky
This is a great sounding instrument which can be confirmed by watching the You Tube video below.
88-key Graded Hammer keyboard with authentic touch State-of-the-art AWM tone generation system Maximum polyphony of 128 notes 50 original Voices, plus 480 XG Voices and 12 Drum Kits Five-band Master EQ, with panel sliders Reverb, Chorus and other effects, including Delay, Rotary Speaker and Auto Wah Comprehensive MIDI functions Bend/Modulation wheels Built-in high-quality stereo speaker system A powerful Performance mode for storing and recalling your custom CP300 settings
Here is a link to the full manual >YAMAHA<
Listen to the Yamaha demo on You Tube
This is Gary Brooker, the previous owner singing Whiter Shade of Pale which was a huge hit for him and his band : Procol Harum