There is a distinction between step and set/ceilí dancing. Three step dances are mentioned in 15th century literature, Irish Hey, Rinnce Fada (long dance) and Tranrore. There is plenty of correspondence from English and Scottish settlers who wrote about native dance. In the Statues of Kilkenny, all Irish sport and dances were banned. Set dancing, I believe, is a mixture of step, Elizabethan and Scottish dances. A mismash, as they weren't too dissimilar.
As for the bodhrán, a traditional drum and the tin whistle is a native instrument, initially fashioned as a child's toy. When played well, is has a beautiful soulful sound.
Drumming and dance are found in all cultures. Of course they are similar, after all, how many ways can you beat a drum and shake a leg?
Regarding similarities in dance, well I'm always reminded about what Bruce Lee said when asked about styles of martial arts, he basically said that unless men grew extra legs or hands that there are always going to be similarities as we are restricted by basically the bio-mechanics of our bodies (I'm paraphrasing)
Likewise forms of dance are gonna look similiar, you also have to remember that Ireland is part of a wider culture zone. If we just look at linguistic relations you have an area stretching from Irish in the West to Bengali in the East that belongs to the one language family (Indo-European).
E3b? How long ago did you get that test, that's quite an old designation and dates from before alot of the sub-branches were known. This haplgroup is now known as E1b1b1* and is marked by the SNP (binary marker -- either + or -) called M35.
If you compare the current draft to the one from 2008 you can see amount of change in last 4 years:
http://ytree.ftdna.com/index.php?name=YCC2008&parent=61263830
http://ytree.ftdna.com/index.php?name=Draft&parent=61263830
The problem with using a tree like the one from 2002 is that it only has some of major branches on it. as a result you end up with very broad swipes. If you look at distrubition using modern tree you see that yes you will find M35 in North Africa and Europe. However there is a different distrubition of different sub-branches between the two areas. (M35 is very old).
Compare the 2002 and 2008 YCC (Y Chromosome Consortium) tree here for the amount of churn in that period.
http://ycc.biosci.arizona.edu/nomenc...ystem/fig1.pdf
http://genome.cshlp.org/content/supp...ree_Poster.pdf
More then like your Haplogroup E lineage refelects the fact that you are descedned from the first farmers in Ireland (the people who eventually built Newgrange). In comparison over 70% of Irishmen belong to a branch of R1b (L21 -- R1b1a2a1a1b4) that only first arose about 4,000 years ago (during the Bronze age) on the continent.
In other words your paternal ancestry has probably been in Ireland longer then 70%+ of Irishmen. Though of course only way to be certain would be to have it tested with a more up to date list of SNP's.
The problem with academic studies of Y-Chromosomes is they tend to be several years behind what's actually been discovered. pfff
There was always Fingalian, though it's been extinct for couple hundred years, here's some from 1698
Ribbeen a roon
Ribbeen moorneeng
Thoo ware good for loand stroand and mounteen
For rig a tool and roast a whiteen
Reddy tha taakle
Gather tha baarnacks
Drink a grote at Nauny Hapennys
Translation:
Robin my love
Robin my dear
Thou were good for land, strand and mountain
Good with a tool and [at] roast[ing] a Whiting
Ready the tackle
Gather the bannocks
Drink a groat at Nanny Halfpenny's [alehouse]
A good news story of Irish dancing in Belfast.
Video: Irish dance flash mob delights Belfast shoppers - Northern Ireland, Local & National - Belfasttelegraph.co.uk