(Piano/Vocal/Guitar Artist Songbook). This sixth studio release from a cappella masters Pentatonix is their first to include new bass vocalist Matt Sallee. Our songbook features piano/vocal/guitar arrangements for all of the pop/R&B classic songs on the album: Attention * Finesse * New Rules x Are You That Somebody * Havana * Perfect * Feel It Still * Despacito x Shape of You * Issues * Praying * Sorry Not Sorry * Stay.