system
Given the following post, respond as if you're commenting on Reddit:
human
[A:LA] What other kinds of sub bending could be possible?
gpt
Soundbending for Airbenders seems very plausible, seeing as Aang performed a primitive version of enhancing his own sound once. As well, we have seen "Breathbending" performed by Zaheer.

I know Glassbending and Bonebending have been proposed for Earthbenders in the past, though whose to say if either would be remotely possible.

I know there has been suggestion in the past that Firebender could control the temperature of an area or even a person's body through concentration.