Those are some reasons I was all aquiver when I heard that Anna Thorvaldsdottir, one of the preeminent composers of our time, had written a string quartet. The work, called Enigma, premiered in Washington DC in 2019 and is finally being released on August 27th in a stunning performance by the Spektral Quartet, beautifully produced by Dan Merceruio for Sono Luminus. Right from the start of the three-movement work it's obvious that Thorvaldsdottir is operating on her own trajectory, with little reference to what's come before in the medium. Beginning with some mysterious alchemy that has the strings sounding like a distant wind, or someone's breath, Enigma is instantly arresting. Long, drawn-out chords further the piece's grip, almost physically pulling you in, as a melody emerges from the drip-drip-drip of the sequences. More breathing, the sound of insects ascending in a swarm, glassy notes interleaving, and sustained drones all assemble in a sound world that seems as visual as it is sonic.