I'm considering buying my own maypole and hiring out it and myself to allow people to do maypole dancing at fairs/ weddings/etc.

Demand is total guesswork, but I'm hoping I can get some work from schools to cover the basic costs.

Where I don't have knowledge is with regard to sound.  Indoors, I can use either a concertina or CDs.  Outdoors, I'm not sure if that will be loud enough.  I've played for the morris team outdoors with just a concertina, but I'm never at my best when attempting to play and teach at the same time.

Outdoors, there's not always going to be somewhere where I can plug in  a CD player.

Could people who know a bit about this, please tell me what kind of (cheap) options I have.