[BklynBlue]

Kirwan's contribution's to Fleetwood Mac has always been undervalued. He brought with him an eclecticism that allowed / encouraged Peter Green to push past the artifical boundaries of "the blues" to explore other musical ideas.

With the recording of "Mr. Wonderful", the band had found themselves in a cul-de-sac - Danny came on board and as Green himself has said, he "helped" him to finish "Albatross" - their breakout single.
The b-side, Danny's "Jigsaw Puzzle Blues" would not have sounded out of place on the Beatles' "White Album". It was as if he said to Green, 'We can just do whatever we want!'
Listen to Danny's "Like Crying" and you can hear the seeds of the instrumentation for "Man of the World".

It was Danny who balance the band's sound, he could do a blues like the Otis Rush styled "Something Inside of Me", or push and compliment Green on his longer improv explorations, but it was his feel for the more "mainstream" (no insult intended), songs he wrote, like "Although the Sun Is Shining" and "When You Say" making the transition to Bob Welch, and the blossoming of Christine Perfect, seem more natural.

Kirwan's catalog within FM and his solo work is certainly due for a reevaluation