It was pre 1970 for sure and its main theme is played on piano..
I know it is not the following.....
A Summer place...
Autum Leaves....

I know that dosnt narrow it down much but im raking my brain trying to figure it out.

Basically the theme went like this....

Hmm hmm ............. hmm hmm hmm hmm ............ hmm hmm.. hmm hmm ..................... hmm hmm hmm hmm hmm

Here it is in numbers......
1,2,
1,2,3,4,
1,2,,3,4,
1,2,3,4,5

Theme from Summer of '42?

SeXyAjj_h2o

No sorry.........

Paul Mariat - Love Is Blue?

rjsNNcsUNzE

Paul Mariat - Love Is Blue?

rjsNNcsUNzE

That is it.....
Excellent detective work from you I must say.

May the ghost of John Bonham bless you..............

just fyi: Earworm - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Earworm)
(I think it's something like "arhvorm" in German)