Pat Donohue combines the rare talent of being a superb guitar player with that of writing excellent songs. He is also a showman who weaves humour and wit into his performances.A concert with Pat can move you with his songs such as Midnight Man, and then astound you with his finger dexterity as he blazes through Scott Joplin's Maple Leaf Rag.His tongue-in-cheek humour shows up in his hilarious song…