Galliambic is a one-purpose meter for poems about the goddess Cybele and her priestesses, the Gallae.  Catullus only uses it in poem 63.

After discussion with a number of sacred drummers we realized the missing element  for ecstatic drumming is simple, just the add one of the preceding syllables,  repeat main whole with the next syllable.  Also the basic meter can be done as a round.

We are in the process of recovering earlier variations of the drumming pattern from Anatolian text from the time of around 600 BCE to 200 BCE and hope to add these drumming patterns here in the near future as we confirm their accuracy.