Lonnie Donegan was a pivotal figure in the development of popular music in that he produced accessible music that fused genres together effectively.
Putting his music hall persuasions aside, Donegan produced some fine music - "Ramblin' Round", "The Comancheros", "Cumberland Gap", "Whoa Buck", "Grand Coulee Dam", "Bring A Little Water Sylvie", "Have A Drink On Me" and "Battle Of New Orleans."
You are right in saying that he will be missed as he was an asset to the course of popular music and has inspired some giants in British music.

A dollar is a dollar and a dime is a dime and he'd sing another chorus but he hasn't got the time........

Welwyn Garden City - An Island In The Setting Sun