Here’s a close-up of Horace Trahan playing “Motordude special” (also “Motor dude special”) on a triple-row button accordion.  This is really an instrumental, though here’s a set of lyrics.  It’s an old Boozoo Chavis song found on Louisiana zydeco musicZydeco trail ride and Live! At the Habibi Temple, Lake Charles, Louisiana.  It’s also been recorded by Beau Jocque (on the fantastic live Git it, Beau Jocque!), Keith Frank (What’s his name?), and the band Motordude Zydeco.