Taking speculative maps drawn in the 10th century by geographer and writer Abu Ishaq Ibrahim ibn Muhammad al-Farisi al-Istakhri and using them as graphical notation scores, double bassist and sound artist Dario Calderone has assembled on his latest album, Isolario, available on Moving Furniture Records, a cycle of duets that offers multiple worlds of mood, mystery, and virtuosic technique.

First: about those maps. Roughly interpretive, they were made not for accuracy so much as to serve as aids for travelers moving along certain Iranian postal routes. Fittingly, it’s the very loose, speculative nature of the maps – images both vague and specific in their abstract, dreamlike appearance – that Calderone draws on to suggest pathways to his fellow musicians as they create their music. (Calderone re-drew the maps himself for use in his project and includes them in a pamphlet available for download on the Bandcamp page. Like the originals they are derived from, they both charm and fascinate.)
As for the music, it charms and fascinates as well. “Sindarūsa,” a duet with drummer Tomas Järmir, is a carefully calibrated blend of Calderone’s steady strokes buttressing Järmir’s slowly building rolls, bursts, and cymbal splashes as they delicately unfold across his kit. “Isola di Malakān,” featuring Neva Özgen on the kemençe, a small, pear-shaped, three-stringed instrument, is a mournful mélange of textures and sighs with Calderone’s electrified double bass providing metallic swells and gusts to Özgen’s passionate flights and occasional frenzied strums. Andy Moor’s unconventional approach to guitar playing yields an array of noise on “Isola Combusta,” from waterlogged, bent notes to off-tune twangs to haunted, bell-like chimes, all of which seem to call forth a parched, keening, upper register response from Calderone that casts the whole thing into a bleak, quasi-Morricone landscape.
“Nell’oceano” finds setar master Kiya Tabassian in perfect sync with Calderone, who plays his double bass at times like a tuned drum while also sparking off some lovely harmonics to Tabassian’s focused, insistent melody. It’s a beauty. On the follow-up track, “Isola Mobile,” Gareth Davis on “bass clarinet and electronics” incinerates that beauty down to the bone as he and Calderone trade and combine some of the harshest, most prickly textures they can wring from their instruments. “Isola Di Tārān,” featuring Deborah Walker on cello, initially continues that abstracted interplay, but as the track proceeds it transforms itself into a conversation of corrugated growls, glinting overtones, and shuddering groans. There’s something both playful and mysterious at work in the racket she and Calderone kick up.
The album closes with “Le Tre Isole,” and Batir Dosimbetov accompanying Calderone on nay, an Uzbekistani wooden flute. Dosimbetov’s whispery textures and shivery blasts clear open expanses throughout the track, creating an ethereal atmosphere, but Calderone’s spare, hotwire drones – and the subtle inclusion of field-recorded conversations – keep things grounded. It’s the emptiest-feeling track here, and before you know it, it’s done and gone. But Isolario is the kind of album that you want to go back and listen to, just to see what you missed. It’s also the kind of album that yields more with each listen.

