Sentence Trigger immediate response

I’d love to have my response spoken immediately when a sentence trigger is used for an automation. If I configure the sentence as a custom sentence in YAML i can use async_action: true to achieve this but I wonder if there’s a way to do this when using a sentence trigger for an automation.

Here’s an example use case:

I want to start music playback of a certain song. Currently, it starts playing the song and then, while the song is already playing, starts talking over it. Ideally it would start talking first, before triggering playback. This works fine when using async_action: true in a custom sentence.

Any ideas anyone?