Skald questions

[Pendagast]

Can a skald cast during his rage song?

Can he choose at the beginning of his turn not to accept the benefits from his own song, to cast a spell, without interrupting the song?

If not. The rage power moment of clarity, can he use that, on himself, without interrupting the song?

IF he wants to spend a feat to get more rage song, what feat does he buy? extra performances? or extra rage?

[blackbloodtroll]

He can cast and use skills whilst benefiting from his own song.

[Scavion]

Inspired Rage wrote:

While under the effects of inspired rage,

allies other than the skald cannot use any Charisma-,
Dexterity-, or Intelligence-based skills (except Acrobatics,
Fly, Intimidate, and Ride) or any ability that requires
patience or concentration.

A Skald can cast during his rage song.

Raging Song wrote:

A raging song counts as the bard’s

bardic performance special ability for any effect that
affects bardic performances.

Extra Performances, not extra rage.

[Pendagast]

blackbloodtroll wrote:

He can cast and use skills whilst benefiting from his own song.

can someone ELSE cast if they are benefiting from his song?

[Dispari Scuro]

Pendagast wrote:

blackbloodtroll wrote:

He can cast and use skills whilst benefiting from his own song.

can someone ELSE cast if they are benefiting from his song?

No, the description specifically says everyone ELSE is limited in what skills they can use, and can't do anything that requires concentration.