Clara Dene's alto is a citizen on Nino Veschi's repair bench and a rumor on the stand at Porta Stanca. Only for her. Other mouths, same horn, same strap even, and the tuner forgives. After three nights of public sag in the upper register, Nino finds the lie where he did not think to look: two millimeters of shaved rubber under the strap hook, the furniture of a body.

A deputy who wants the Udine poster. A sister who needs a dentist. An apprentice who steals pads for a kitchen bench. A man found sitting in the alley with a tuner set to the sick number. Written with Svevian digestion and the humor of a repairman who distrusts straps, Octave Key is a murder mystery about posture becoming fate, and about felt as the only country where horns tell the truth.