Hi David,
ROLI Studio Player v1.0.0 does not currently contain a synthetic or acoustic drum engine. As such, there are currently no drum packs available with ROLI Studio Player v1.0.0. If you've read otherwise, please let us know where you were informed of any drum/rhythm features of ROLI Studio Player and we'd be happy to clarify.
David Kachlon
Hi. How can I find the drum packs for Roli studio player??? I only see SyNTH