Here are the main sections of Duck Dunn’s bass line on the Otis Redding version of Respect. One of the things that Duck excelled at was creating relatively simple lines and then delivering them with great drive and time feel. Respect is a great example of this.
Like Duck Dunn? Want to learn the foundational devices and ideas that Duck used in his R&B and blues bass playing? Then check out the Duck Dunn Challenge (by clicking the image):