The -Envelope from the ADSRVCA is modulating the speed of sample playback and there's 2hp action from Pluck and Bell along with some subtle Vowel, Erica Pico DSP and 2hp Verb on effects duty.
Enjoy your spare HP, don't rush to fill every last space, this is not like filling sticker books. Resist the urge to 'complete' your rack, its never complete so just relax.