Evening Air is the result Loren Connors and David Grubbs’s first trip to the recording studio in the two decades since their first duo album, Arborvitae (Häpna). Arborvitae stood out for its spellbinding, utterly unhurried meshing of electric guitar (Connors) and piano (Grubbs).

With this long-awaited return, Connors and Grubbs take turns trading off on piano and guitar, with Grubbs at the keyboard for the two gently expansive pieces on the first side and Connors taking over the instrument for three gorgeous miniatures on the flip, including an album-closing and perfectly heart-stopping version of Connors’s and Suzanne Langille’s “Child.” The album’s wildcard is “It’s Snowing Onstage,” which finds the two locking horns with two electric guitars before Loren blew the minds of all present in the studio by unexpectedly switching to drums.

Loren Connors is one-of-a-kind, one of a handful of deservedly storied musical greats gracing us with their presence, and with Evening Air David Grubbs again demonstrates that he’s a stellar musician who also ranks among the most simpatico of collaborators.

A cover painting by Connors — another wordless signalling — sets the tone for this most beguiling of seances.