The cerebellum is essential for sensorimotor coordination. Cerebellar cortex needs to integrate large amounts of data via the mossy fiber - parallel fiber pathway, modulating the simple spike activity of its sole output neuron, the Purkinje cell (Thach 1968). One mechanism that may structure these incoming data streams are the complex spikes, which are large action potentials triggered by the other prominent cerebellar pathway, the climbing fiber input from the inferior olive (Eccles et al. 1966). Complex spike firing can act as a conductor for orchestrating simple spike activity across the cerebellar cortex, which is paramount for downstream processing at the cerebellar nuclei (Person & Raman 2012; Atkins & Apps 1997; Apps & Hawkes 2009). Recent results show that phase of simple spike firing is indeed shaped by complex spike firing (Badura et al. 2013). In order for a large number of inputs from the Purkinje cell to optimally control CN firing, it has been suggested that the spatiotemporal pattern of complex spike activity of ensembles of Purkinje cells is important for both online control of movements (Welsh et al. 1995; De Zeeuw et al. 2011) as well as motor learning (Van Der Giessen et al. 2008).