I'm not sure if this has been discussed before, but I thought it'd be a good subject to revisit if it has. I've been listening to a lot of Invictus/Hot Wax recordings lately and it got me to thinking about the Detroit Sound and the Motown Sound. We know the Funk Brothers moonlit around the city throughout the 60's for Ric-Tic, Golden World, etc. and later for Invictus/Hot Wax. There are clearly similarities in sound almost to the point several non-Motown recordings sounded as though they were cut down in the Snakepit due to the Funk Bros., but there are also their differences. I know the Funk Bros. weren't on every recording cut in Detroit, but what exactly is the difference between the Detroit Sound and the Motown Sound? Is it the differences in studios, recording equipment, EQ's, producers, the usage of non-Funk Bros.? And exactly makes them different from the sounds coming out of Chicago, Memphis, Muscle Shoals, etc.