The Belfast duo Dark Trop­ics describe their sound as pop noir. And if you check out their brand new sin­gle Moroc­can Sun and its accom­pa­ny­ing sum­mer-vibe filled video, you’ll get the mes­sage. There’s a sun­ny but very sul­try thing going on. Sum­mer mem­o­ries linger on… with touch­es of regret and sad­ness in the mix. Isn’t…