Review
Balboa / Rosetta
Project Mercury

Level Plane (2007) Michael

Balboa / Rosetta – Project Mercury cover artwork
Balboa / Rosetta – Project Mercury — Level Plane, 2007

Project Mercury is the latest output of material from two of Philadelphia's underground sensations: Balboa and Rosetta. The split features original material from each band as well as a collaborative piece - much like the Harkonen and These Arms are Snakes split put out a couple of years back. Project Mercury is a dynamic adventure in music, much like that of the human spaceflights from which it takes it name.

Balboa - inspired by Rocky

just maybe - starts things off with three originals. The first song, "Primitive Accumulation," is the shortest of the whole album, clocking in at just less than three minutes. The song opens with a fairly mellow instrumental sequence before vocalist Peter Bloom's sweet melodies enter the equation. This doesn't last long; the song quickly erupts into a technical metal frenzy with Bloom screaming relentlessly over the top of the music, and abruptly ends as quickly as it began. "Kaddish" continues the progressive hardcore assault. The song moves through instrumental post-rock/post-punk moments before culminating in a flurry of aggressive guitars and run-your-head-in-circles drumming, courtesy of Dave Pacifico and Drew Juergens, respectively. Balboa's last contribution, "Planet of Slums," is the band's heaviest cut. The song is frenetic mixture of discordant hardcore, traditional screamo, and elements of post-rock, falling someplace between Neurosis and City of Caterpillar.

Rosetta return with their first new material since 2005's landmark mega-opus The Galilean Satellites. Rosetta set course with "TMA-1," a ten minute instrumental journey that is essentially one giant rise to a spectacular climax. Over the course of the song, guitarist Matt Weed weaves his brilliance with the plodding basslines of Dave Grossman and B.J. McMurtie's well-executed drumwork. Vocalist Mike Armine is absent on this track, but he provides numerous background effects and noise that add further ambience to the song. "Clavius" is equally as daunting, clocking it at over twelve minutes. Musically, the song follows very much in line with "TMA-1," but additionally Armine contributes coarse yells - lyrically using metaphors of astrology, not farfetched given the title coming from mathematician and astronomer Christopher Clavius. The closing three minutes of music features some of the heaviest riffage I've heard all year.

Finally, both Balboa and Rosetta team up for "Project Mercury," a near nine-minute song, which seems to walk the fine line between the worlds of metal and post-rock, if there even exists a line anymore. The collaboration is a mixture of progressive metal and hardcore with dashes of post-rock and noise splashed together. It's hard to describe, as is best left to be witnessed.

Balboa and Rosetta both deliver the goods on Project Mercury, but I found the Rosetta tracks to be a bit more deserving of praise. I know I can listen to a full album of their music, as their previous LP impressed me greatly. Balboa, on the other hand, I feel I can only handle in small doses, which is good news for me, as they seem to be primarily involved in releasing splits and EP's.

8.0 / 10Michael • August 28, 2007

Balboa / Rosetta – Project Mercury cover artwork
Balboa / Rosetta – Project Mercury — Level Plane, 2007

Recently-posted album reviews

Sweat

Tear it on Down
Vitriol (2026)

Tear It On Down is the third record from Sweat and it picks up where the last two left off. It's aggressive hardcore punk, but with a playful groove or swagger that really makes it feel uplifting, even when the content is not. Case in point: "Surveillance State," which rolls kind of like a call-and-response song, except that lead vocalist … Read more

Latchkey Kids

Years Of Summers
Pathetic Pinky Party (2026)

Growing up is rarely cinematic in real time but when you look back, it can feel mythic. On Year Of Summers, New Jersey’s Latchkey Kids frame heartbreak, identity, and grief through something closer to epic storytelling than simple emo confession. It’s a record that understands the drama of youth without romanticizing it. Frontman Hanny Ramadan positions the album as a … Read more

Mental Gymnast

Mental Gymnast
Say-10 (2026)

Recipe: Mental Gymnast Self-Titled Creator: Mental Gymnast Cookbook: Say-10 Recipes Copyright: 2/27/26 Ingredients: 1 Very Ripe Adam Gecking on Vocals 1 Stick Unsalted Erica Clayton on Bass 2 Slices Scotty Sandwich (1 Slice Guitar, 1 Slice Drums) 1 Dash Chris Ruckus on Synths Directions: *Preheat the recording studio to 65 degrees. Add all of the ingredients together in “One Big … Read more