Complex sentence: However, as I am sure you must have noticed, the article is primarily about the band itself (comprising Christy Moore, Andy Irvine, Dónal Lunny and Liam O'Flynn); in other words, it is not an article about O'Carolan's' planxties'.
Split into simpler sentences: However, as I am sure you must have noticed, the article is primarily about the band itself (comprising Christy Moore, Andy Irvine, Dónal Lunny and Liam O'Flynn). In other words, it is not an article about O'Carolan's' planxties'.