Grateful Dead - Which course Blues or Rock?

Which course do you recommend starting with? Want to play more of the Dead/jam band type music.  Trying to figure out what would benefit me more the Blues or the Rock course. Went thru the fundamentals already.

Thanks in advance for any input.

I recommend the blues course.  You'll get a broader sense of improvisation over basic chord progressions, which is a common element in blues based rock.  And of course, learning the tunes & licks of those artists is a great idea.

Hope that helps.

Do both... that's my intent... split my time between both of those paths.