http://blog.swanfungus.com/2008/07/my-trip-downtown.html

"the songs here are every bit as gutsy as the label's name implies,
evrry song has a STRONG GROOVE, regardless of the tempo."

What is a 'groove'?
What is a 'strong groove'?
What are some recordings with 'weak grooves'?
What is a composition without 'groove'?