This is the 14379th most frequent German word.
irische
"Irische" means "Irish" in English.
The word 'irische' is used as an attributive adjective modifying the noun 'Musik' to describe it as being Irish.
Die irische Musik ist weltberühmt.
Irish music is world-famous.
Here, 'irische' again serves as an attributive adjective describing the noun 'Landschaft', indicating that the landscape is from Ireland.
Ich liebe die irische Landschaft.
I love the Irish landscape.
In this case, 'irische' modifies the noun 'Kulturfestival', specifying that it relates to Ireland's culture.