taimatsu no monogatari

Come on, thesps, help me out!

First, I need ideas for a) energetic warm-ups, b) getting-into-character warm-ups, and c) voice warm-ups. The first two must be suitable for hearing-impaired performers, so nothing which involves someone talking while players are not looking at them will work (e.g. games where you run around and someone calls a command are not possible).

Second, I need advice on theatre music/performing rights. The play on which I am working needs some music. The PRS website has a whole thing about telling them stuff 30 days before the performance so they can clear rights, but this then seems to refer only to interpolated music (which is when the performers actually produce the music on stage). We just want to use recorded music. Will the venue have a licence which covers this already, or am I dim and we need to talk to the PRS anyway? (My director may know this stuff already, please don't judge her by my incompetence - I just haven't had time to talk this bit through with her.)

A further, related question, which geeks may be able to help me with - if a piece of music is Creative-Commons-licensed, can it be played from a recording for a theatre performance? (Of course the commercial vs. non-commercial thing is relevant, and I would tbh just contact the composer/performer and check what they thought of our enterprise.) Does a reproduction like that come under general CC usage? I know this is stupid but I want to check.