the individual albums in the "pebbles" series include records from throughout the nation, along with a few from canada and other countries. additionally, the "pebbles, volume 6" lp features british bands, while the recordings on "the continent lashes back" sub-series within the pebbles series are taken from continental europe. by contrast, the recordings on the "highs in the mid-sixties series" are strictly by american artists, and the individual albums showcase garage rock recordings by bands from particular cities, states and regions. as a result, many of the albums evidence a particular regional "sound" in the musical scene in that part of the country.