In Tune
Prerequisites maestro muse
You attune your great skill in performing to another, granting them a small measure of your skill as though anyone could do it. If your next action is casting a composition spell with an emanation area, its area spreads from a willing ally of your choice within 60 feet instead of you.
If you have Directed Audience, you can have that cone originate from the ally instead.
Traits
This indicates abilities from the bard class.
An action with this trait requires a degree of mental concentration and discipline.
Spellshape actions tweak the properties of your spells. You must use a spellshape action directly before casting the spell you want to alter. If you use any action (including free actions and reactions) other than casting a spell directly after, you waste the benefits of the spellshape action. The benefit is also lost if your turn ends before you cast the spell. Any additional effects added by a spellshape action are part of the spell's effect, not of the spellshape action itself.