"Rosalie" was performed by Michael Tarry in 1973. I have not found it on compact disc, though it may well appear on some seventies compilation or other. Used copies of the 45 single can be bought here and there on the Web.

I have transcribed the lyrics. My apologies for any errors.

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"Rosalie"
Michael Tarry
1973

She was a ballet dancer.
With the grace of a dove,
She would dance up above
In the other room.

I would invite her down to tea,
But she never would agree.
She didn't like my way of doing things;
(It)'s not her way.

And when the music played,
Like arrows in your heart,
Bleeding from the start,
She meant everything.

Make the answer lie within,
And your troubles not begin.
Can you make it that way for me?

(Chorus)
Rosalie, Rosalie, can I sing you a song?
And tell you all my secrets,
And tell you all my thoughts?

There's nothing I'd like better
And there's nothing I would not do
For you, Rosalie.

Of all the things we talked about,
It would never come across.
You would always get so cross
And ruin everything.

You know I tried my very best?
When I did I pleased you less;
There's no use in trying anymore.

(Chorus repeats)

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Michael Tarry was British but performed in Canada. Here's a brief Canadian Pop Encyclopedia entry about him:
jam.canoe.ca/Music/Pop_Encyclopedia/T/Tarry_Michael.html

The song ascended and descended the Canadian top-30 charts during June and July of 1973, according to this site:
www.webfitz.com/lyrics/Charts/1973/Ch197306.html
www.webfitz.com/lyrics/Charts/1973/Ch197307.html

Hopefully this information will be helpful, if not to the person who inquired so long ago, then to other people who are still searching for "Rosalie". The vocals and rich instrumentation sound lovely even today. They are very representative of their time.