Can an experienced Bard tell me how this skill is trained please? I cant seem to get it to budge doing anything.

>>Practice breathing, practice stretching and whistle piercing, basically. Screams will also train it, but not well in my experience.

Super novice bard here so all of this is "alien" to me. These are Bardic Abilities?

> Super novice bard here so all of this is "alien" to me. These are Bardic Abilities?

Yes, sorry. You should be able to do "practice breathing" or "practice stretching" right out of the gate. Each of those will give about 25 seconds of roundtime, broken up into pulses of 5 seconds. If you do anything while it's happening, you'll break the process and learn nothing, so wait until you get a message about feeling more confident. They're each on a lengthy cooldown, but I don't know the number offhand.

Whistle piercing is a super-useful ability on its own, which you'll get at 18th circle, I think.