More on Ska

Thanks to Dave Carroll for his comments. If it's good enough for Dave it's good enough for me. Here are some more quotes that I found on a site called Gospelreggae.com which tend to back up his conclusions - or maybe not!
Ska: From the phrase (love) ska (voovie), greeting used by Jamaican bassist Cluet Johnson, one of the early creators of ska, or imitative of the sound of a guitar in tandem with a rim click on a snare drum.... The music of ska is known for the placement of the accented guitar and piano rhythms on the upbeats. The word "ska" may have onomatopoeic origins in a tradition of poetic or possibly even musical rhythms. Guitarist Ernest Ranglin said that "the offbeat guitar scratching that he and other musicians played was referred to as 'skat! skat! skat!'"