Hi Enrico! 

Thank you for your message and kind words; they're very much appreciated!   
Thank you also for the correction you're suggesting. I will look into the sources I used for the Planxty reunion dates and locations, and then update this section later on. Normally, I would do this straight away but I am quite busy at the moment and will be for the next few days. However, please know that I will definitely aim to fix this if I can, as I am always striving to ensure there is a third-party source for everything I contribute to the encyclopaedia. Of course, if some of these 3rd-party sources are wrong, then it's going to be tricky!
I also notice that you are a brand new user, who has made your first edit today, and to my user page! So, a very warm welcome to you and I hope you will enjoy your time here, either as a reader or maybe also as a contributing editor. In fact, I wouldn't be surprised if your user and/or talk pages get supdated very soon with a 'Welcome' message from editors who like to take 'newbies' (= newcomers) under their wings.  
But if you look at my user page, you will see that I collected a lot of links to Wikipedia articles that provide details about editorial guidelines, such as the 'Manual Of Style' (Wiki:MOS). May I also suggest that, if you want some help in getting started as an editor, you can ask me and I will edit a few pointers in your own user- and talk-pages. You don't *have* to do any of these things, but if you're interested and have the time, then I'l be happy to help you in your first steps. So, just let me know, OK?
Finally, although I made quite a few changes to the 'Planxty' article (and especially to the 'Andy Irvine (musician)' article), one of the essential principles of our encyclopaedia is that these articles do not 'belong' to any one editor: we all contribute what we can without any article ever becoming 'mine'. In my case, I just happen to have been a Planxty (and Irvine) fan  for a long time and had kept a lot of reference material (mainly my collection of folk music magazines) that proved very useful to update the articles. I am still working on the Irvine article and the next tasks will be to create related articles for some of the albums. Then, of course, we need more photos but these are very difficult to include because of the copyright rules in Wikipedia.