T-Roy is the DJ currently holding down the dub scene on Frenchman Street (Blue Nile, Yuki, Dragon’s Den), and as you might imagine from the title, his mix of reggae and dancehall comes with some very local details on this, his second instrumental album.

The beats on Deep South Dub have trace elements of bounce, while the organ fills tend to be jazzier and funkier at the same time.

But while “Fire Ganja,” “Family Life,” and “Fried” match the more upbeat party dub you might expect from a New Orleans sound system, most of it is surprisingly bleak, minimalist original dub with lonely melodica musings and futuristic effects that feel like postapocalyptic klaxons.

Real urban jungle stuff, in other words, and yet the “riddims” are so true (and fat with bass) that it resonates anyway.

Hopefully, the mood he sustains over these dozen tracks is not indicative of the Crescent City’s outlook as we enter a new era, but the very possibility makes for an unsettling context. Maybe this is why T is carrying the entire system on his back, Atlas style, on the cover.

Or maybe we’ve all just been ignoring him too much for too long.