Re the discussion of zydeco earlier. A mention should be made here of JC Gallow, of Mamou, Louisiana. He has been active for many many years in keeping the old La La/Creole style going, with the Lawtell Playboys, various Broussard family members, also BeBe and Calin Carriere etc. I think Delton broussard and Calvin Carriere are gone now, so JC Gallow may be the only sugnificant survivor of that musical world. The kids brought up in the older music are carrying on as muscians, but have largely gone over to zydeco as far as I know. As with Gino Delaqfose taking over from his father John: Gino plays a few of the old tunes in quite a creole way, but he;'s basically a zydeco man. So if you here of JC Gallow, talk to him while you have the chance. He knows stuff that is going.
Re the etymolgy of zydeco and its linguistic variants zarico etc. Lightning Hopkins recorded a song called Zola Go, as far as I remember.