Privia PX-S3000 Registrations: EP & Clav This is a collection of four PX-S3000 Registrations focused on electric piano and clav sounds, featuring some time-honored amplifier and effect combinations.   LOADING INSTRUCTIONS   Create a folder titled “MUSICDAT” on a USB flash drive and copy the EP&CLAV.RBK file into it. If you’ve previously used this drive with your PX-S3000, this folder may already exist.