All these are Tone registration banks. Each bank has a set of 8 Pre-Edited Tones with effects such as Delay, Reverb, Flanger & other effects. Just Download and Enjoy the collection of Tones.
Note: Supported Keyboard Models
Yamaha PSR-1500, 3000.
Yamaha PSR-S670, S700, S710, S750, S770, S775, S900, S910, S950, S970, S975.