Just brainstorming some new ideas drawn from classic fantasy and wondering how to implement them in Ars.
The first is an effect that targets everyone that can hear a noise generated by the caster (or item). My idea behind this is enchanted bells. Imagine a belltower with a huge bronze bell that rings out twice a day and drives off devils with a PeVi effect. Or a mighty horn that puts courage into the heart of all that hear it blown (CrMe). Certainly many magical instruments will just target a thing. D&Ds classic horn of blasting is a simple point and shoot effect that could be achieved with a voice range. But its much harder to have an effect that targets all who can hear it.
The second idea came from the first. But this time an effect that targets all who see it. Inspiration here is a battle standard that either gives enemies the willies when they see it or gives bravery to those who march under it, although you'd have some issues here targeting your effect since you don't want the other side to have the benefit/effect as your side. Maybe a better version would be D&Ds exploding runes. Essentially a trap that activates when your read the runes. I'm guessing the closest in ars would be a Watching Ward with both an attack spell and a some kind of detection spell to act as the trigger. Or would you need the detection. Could you integrate the trigger just as "Reads runes written at time of casting"?
Now sensory magic in the Bjornaer book can sort of do those things, but it has specific limits based on the animalistic nature of the magic, and is a house mystery.
Could you invent a R/D/T to do this? Does it already exist?