Another charm idea! However, this time it is not something that we can make out of available resources. It... would probably take some very specialty mats to make something like this.
Bell of Silenced Disaster (Bell)
Traveler Charm (??)
Walking a path of Time has been described as unwise, for the traveler and those around them. But there are those who still choose to walk it, and this bell hopes to ease the potential consequences of that decision. Small and made of a strange gold alloy, this bell will toll with an unexpectedly deep sound when it predicts disaster is near. Additionally, the tolling of the bell will silence all music to those who hear it, for reasons only a few know of.
So the idea of this charm is to construct something that can observe the fluctuations of the strange alien anam that seems connected to the Symphony-in-Rags, both in the present and in the future. Should that strange anam become agitated to a proscribed degree, the bell will begin to toll as a warning and as, hopefully, a way to stop people from hearing the Symphony-in-Rags. While it is unlikely to be effective in actually stopping the disaster from occurring, a thrown pebble, at the right time, can be enough to divert the raging course of history to a more palatable outcome.