Well, first of all, what is the difference between a Ceilidh, a Twmpath, and a Barn Dance? Several theories exist, but this is mine. Barn Dances tend to be a little more reserved than Ceilidhs - the band maybe of a more conventional line-up, sometimes sitting on the stage, and playing mainly traditional tunes. Some people associate Barn Dances with American style hoe-downs, which are more like Country & Western events, but a British barn dance uses mainly British country dance tunes. A Ceilidh is generally regarded to be a more lively affair, with a few songs and tunes maybe thrown in. Ceilidh bands usually stand (or even dance!) on the stage, the tunes are frequently self-penned or up-tempo arrangements of traditional tunes, and the sound is a bit more 'electric'. A Twmpath in Wales might use more traditional Welsh Tunes and Dances, but is essentially the same as a Ceilidh in spirit. All the above variations are great fun, the dances themselves are similar, it's just a matter of personal choice.
Zekundbest concentrates on the British Ceilidh style of dance. If you want an American hoe-down, don't book me. If you want an Irish evening, don't book me. But if you want to have a lively, fun dance then get in touch. I use dances that I know, with 30 years of experience, will be within the ability of total newcomers, and yet interesting enough for people who have danced before, but the programme is very flexible and can be adapted to any occasion.
The format of an evening is obviously up to you. Generally speaking, I would perform two 60-75 minute sets with perhaps a half-hour interval inbetween (often used to serve a buffet , cut a cake, etc.) I usually do two dances in a row and then give the audience a longer rest of 3-4 minutes - I find this works well, it gives people chance to rest, have a chat, get a drink etc. I will (unless we know we have an expert audience!) start off with easier dances to give people confidence, and learn a few terms, conventions etc., but soon, I will have everyone on the dance floor, working up a sweat! The emphasis is always on making it fun, though - I don't mind if you go wrong or fall over, and I try to get as many people involved as possible. I am also fully experienced in using gender-neutral calling if required.
Zekundbest is aimed at the smaller event, up to 30-40 or so participants, but I can put you in touch with other bands for larger events.