Thrice Completing Thematic Album Project

Thrice will release the last installment of its four-part concept endeavor, "The Alchemy Index Vols: III & IV -- Earth & Air," on April 15 via Vagrant.

Thrice will release the last installment of its four-part concept endeavor, "The Alchemy Index Vols: III & IV -- Earth & Air," on April 15 via Vagrant. The first two volumes, "Fire & Water," were released last October as a double-disc set, with each element presented as its own EP. "Vols III & IV" will be packaged in the same manner.

According to Thrice frontman Dustin Kensrue, "The Alchemy Index" is a departure from much of the hard rock band's previous work. "It opened a lot of things up for us in what we could do in the future," he told Billboard.com. "It felt like we were at a point where we could do other things besides make a conventional record."

Each disc features songs thematically relevant their specific element, as well as an original sonnet composed by Kensrue to unify the themes. "I felt more than anything that these elements could be a force for so many things, each song could use the element as a metaphor for something else. They're all fluid. Malleable," he said.

Aside from promoting the new Thrice album, Kensrue is hoping to record another solo album to be released this summer, though he's wary of rushing the effort. "The deal with my solo stuff is that I try to let it be what it wants to be,” he says. He hinted that a new solo set would incorporate a little more instrumentation than his 2007 solo debut, "Please Come Home."

Thrice will embark on a North American tour with Circa Survive and Pelican this spring, kicking off April 16 in San Diego.