I have just completed Module 4 Lesson 4 and am already able to play along with some of my favorite songs. The 1st link is a very old concert by Kassav, a band from Martinique/Guadaloupe which I grew up listening to. Even as a DJ played with them here in the Netherlands. The bass player is just amazing and the bass lines are simple to follow. You can play along even on the single E string and chugging a bit 
The 2nd link is Bob Marley’s Greatest Hits https://www.youtube.com/watch?v=nVAuyBOlmQ8. Also some very smooth bass lines.