A wavetable granular synthesizer, using ambisonic spatialisation. You'll need to edit the granulo abstraction to fit your configuration, and by that I mean the number of speakers you have. See the grambipan help file. You'll also have to add some throw~/catch~ objects and modifiy the dac~in the closet subpatch accordingly.
It uses the gramilib: https://forum.pdpatchrepo.info/topic/9803/grambilib-new-ambisonics-externals-for-pd/8