Alrighty, so I've got the guitar part for Don't Think Twice down fairly well, having already pretty much mastered Clawhammer finger picking style. Now I would like to get the harmonica part rolling. What key harmonica would I need? I have one in the key of D, I sorta just guessed upon buying it. No worries if I messed up. Also, if anyone would like to verify the credibility of these tabs* (if they are shit or not), I'd appreciate it. Also, if anyone knows what the following symbols mean in harmonica tab, that'd also help: " + ", " ' ", " ^ ", etc. Any tips help, I am very new at harmonica.

* - https://www.harptabs.com/song.php?ID=12299