Review: Opsimath – Hauntings of Intrepid Stardust

Style: Post-metal, progressive metal (mixed vocals)
Recommended for fans of: The Ocean, Mastodon, Psychonaut
Country: Croatia
Release date: 21 June 2025

Some things are much harder to learn later in life. As a triathlete, I lament the fact that I didn’t learn to swim properly as a kid. Sure, I eventually picked up the freestyle stroke well enough, but I’d be significantly faster had I instilled proper technique when my mind was younger and more malleable. At age 33, no matter how much I train, my technique has stagnated, even as I get fitter and fitter. Languages are similar, as I’m sure the hordes of people my age who’ve given up on Duolingo can attest. There’s a little-used word for the late learner, who may have missed the formative advantages of youth: an opsimath.

Opsimath also happens to be the name of the one-man metal project masterminded by Croatian multi-instrumentalist and vocalist Kristijan Bajlo. What the name refers to is up for interpretation: musically, is Bajlo an opsimath? Unlikely, given that he’s the same age as me and has built up a formidable list of active and past projects dating back to at least 2007. Perhaps the name refers to a late decision to begin Opsimath, and the learning required to carry it out, as the project wasn’t created until 2020. Maybe the name is nothing more than a name. Whatever the case, after Opsimath’s strong 2023 debut, Bajlo is back with Hauntings of Intrepid Stardust. Joining him is a host of guest musicians and vocalists, though he remains the project’s primary driver. Opsimath or not, does Bajlo’s follow-up effort show learning and progression, or does it stagnate like my middling swim stroke?

Although rooted in post-metal, Bajlo isn’t afraid to draw from whatever genres he sees fit, as Hauntings of Intrepid Stardust has elements from all over the metal universe. The overt black metal inspiration of the debut is nearly absent, but you can hear shades of prog, groove, stoner, thrash, a touch of Gothenburg, death, and others. And while none of Bajlo’s songwriting is especially unique in isolation, the way he dynamically infuses these different styles keeps the record exciting. Hauntings’ structure is somewhat unorthodox, offering eight tracks, with four heavier ones each followed by a softer one. From a compositional or conceptual standpoint, it’s not clear to me why Bajlo organized the songs in this heavy-soft pattern, and the listening experience can feel a little disjointed. But the quality of the songs themselves and Bajlo’s ability to wield and blend different genres so effectively make this easy to forgive. 

“The Snake,” for example, has a groovin’ albeit somewhat generic verse riff with Hetfield-like vocals, but soon the tempo slows and a proggy, off-kilter triplet rhythm takes hold; a hooky chorus follows, a soulful solo and swinging bridge comes after that, and then the track explodes into a full-on death metal section. That’s a lot packed into a song that’s so easy to listen to. Meanwhile, Gothenburg-esque guitars propel “The Beast” forward into a thrashy midsection and ripping solo. The two standout songs, however, are opener “Into the Abyss” and penultimate track “Under the Sunless Sky,” each being an absolute riff fest with plenty of texture. The former includes a classical guitar opening with traditional percussion, and the latter features an excellent mixture of male and female vocals. “Under the Sunless Sky” also has one of the catchiest riffs of the year, beginning the bridge just shy of the three-minute mark. The guitar solo that comes in and plays over it is the icing on the cake. 

Hauntings’ four other tracks—all of the softer variety—don’t quite match up in quality to their heavier counterparts, but they’re well done and enjoyable enough. Each is driven primarily by clean guitars, light percussion, and emotive vocals. Indeed, Bajlo and his guest vocalists are notably strong across the entire album, heavy and gentle tracks alike, varying emotion and intensity as each passage demands with gruff yet often melodic deliveries. From the hellish growls before the final chorus of “The Snake” to the heartfelt crooning of “Through the Whirlwinds,” the vocals consistently impress. The performance in closing track “Onward” is the biggest surprise, having an approach with an uncanny resemblance to that of Pain of Salvation’s Daniel Gildenlöw. Odd as that may seem after seven songs without theatrical flair, the vocals are charming and provide a memorable ending to the album.

Ultimately, Hauntings of Intrepid Stardust stands as an accessible yet refined metal album. Its main ingredients—the songwriting, vocals, and instrumental performances—are rock solid, and it boasts a production and mix on par with any other album out there. Although Hauntings might not feel perfectly balanced in its structure and quality, and its material isn’t earth-shattering, anyone who enjoys metal should find quite a lot to like. Hauntings of Intrepid Stardust builds upon Opsimath’s debut and delivers another success—Bajlo, the opsimath perhaps, has done it again. Maybe that’s all the inspiration I need to get back in the pool.

Recommended tracks: Into the Abyss, Under the Sunless Sky, Onward
You may also like: SIKASA, Cobra the Impaler, Hippotraktor, Obscure Sphinx
Final verdict: 7/10

Related links: Bandcamp | Spotify | Facebook | Instagram | Metal-Archives

Label: Independent

Opsimath is:
– Kristijan Bajlo (all instruments, vocals)
With guests:
– Bruno Longfield (vocals, “Into the Abyss”)
– Karlo Žampera (lead guitars, “Into the Abyss” and “The Snake”)
– Linda Primožić Kinda (classical guitars, “Into the Abyss”)
– Toma Cukrov (keyboards, “Take Me Home”)
– Dario Berg (vocals, “The Snake”)
– Damir Tomić (vocals, “The Beast”)
– Bruno Grobelšek (lead guitars, “The Beast”)
– Lea Magzan (vocals, “Under the Sunless Sky”)
– Viktor Petrina (lead guitars, “Under the Sunless Sky”)