40 Shades of Green. 40 Years of Irish Music. 40 years of memories made, friendships made and renewed every year. 40 years of families making the first weekend in March a sacred date on their calendar to come out and volunteer and help make this festival come alive. 40 years of future spouses meeting each other at NTIF, a few weddings on the grounds here and there, and one beloved tree that looms large as the resting place of the ashes of more than a few longtime and well-loved volunteers. In its 40 years, NTIF has seen the circle of life come to fruition, and we are grateful to still be here.