She shifted some wind-loosened hair out of her eyes and kept gazing up and around. A kilometres-distant smudge might be a flock of birds; her familiar, Pyan, was probably flying with them, playing. Her eyes strained, magnifying the view as best they could; she could feel rings of tiny muscles warping the lenses in each eye, while other filaments altered the shape of her foveae. Were those birds – and of the right species? But the distance was too great. There might be a larger dark shape mixed in with the flock, but there might not. Even if there was, it might just be a larger bird being mobbed.

There was probably some local system she could ask to find out and quite possibly one or more of the flock would be augmented or entirely artificial, allowing her, in theory, to interrogate them regarding her familiar’s whereabouts, but she had grown used, lately, to such systems either not working at all or not working properly – like pretty much all systems everywhere, throughout the Gzilt civilisation, from what she could gather. And anyway, she found it hard to be sufficiently bothered. She also knew better than to try talking to the creature at such moments unless there was some genuinely dire emergency; Pyan, in the end, was its own being, not her property. Sometimes she wondered if it was even her friend.

She sighed, stretched her arms out and loosely shook all four hands, as though trying to free them from something sticky.

She arched her back again; it had become stiff during the last quarter of an hour or so as she’d tackled the demanding middle section of the work. She stood carefully, holding on to the neck of the elevenstring with one hand, lifting the two bows with another, running a third hand through her hair and picking her nose with her fourth.

The elevenstring ideally required its player to have four hands. It could be played by two people, though this required some serious coordination and sometimes fancy footwork, and almost all the pieces written for it, including the Hydrogen Sonata, could be performed adequately by a string trio plus a couple of suitably tuned basses, but to be played as it was intended to be, Vilabier The Younger’s most famous composition really required the bodily acoustic Antagonistic Undecagonstring for four hands, and a single, dextrous instrumentalist.

The instrument, like the work, was near impossible to play acceptably, let alone perfectly, yet one demanded the other and the great Antagonistic Undecagonstringists (only a handful in the near millieon since the piece was written) had, allegedly, played and – even more annoyingly, as far as Cossont was concerned – left recordings of the complete work, to show it could be done.