They play just like regular styles (follow chords in the left hand, play fill-ins when changing main sections, etc.) The styles are stripped down and are meant to be played. I recorded and translated 22 of my favorite Motif/MOX Performances to PSR/Tyros styles - Performance styles. Even if you’re not a songwriter, the Motif Performances are just plain fun for jamming or practice. Each set of phrases has a role (main section, fill, break) and the composer switches between sets while playing in order to lay down a basic arrangement or backing track. The arpeggios are drawn from a built-in library of several thousand musical phrases in a slew of contemporary genres.
A Performance has up to four independent voices (drum, bass, guitar, etc.) and up to six sets of related musical phrases - “arpeggios” in Motif-speak.
The Yamaha Motif/MOX series of synthesizer workstations have hundreds of factory “Performances” to to help a composer get started with a new song. The PSR-E443 folks don’t get enough love, so here is a collection of performance styles for the E443 and the E433.