Four (or more) artists have gone by the name Cortex: a French jazz-funk group from the 70s, a Swedish punk band, a Spanish metalcore band, a Macedonian thrash/death band and a experimental Belgian project by Alain Neffe, a Norwegian free jazz quartet. 1. A French jazz funk group from the seventies. Key members were Alain Mion (Piano) and Alain Gandolfi (drums, percussion). Cortex recorded several albums and singles for the Sonodisc label. 2 albums got re-issued: 'Troupeau Bleu' (on 'Dare-Dare') and 'Volume 2' (on 'Follow Me').