Marc Geagan is a lecturer, musician and writer from Bundoran, Donegal. He teaches in the music department at the North West Regional College in Derry. He has performed with many groups over the past 20 years, most notably Mirenda Rosenberg when she supported Chuck Berry on his last Irish tour. He has published 2 books and lectured at NYU and Drew University in the US. He is also a regular contributor to the History Ireland Hedge School series on the subject of music history.