Chas,
here are some info at Wikipedia.
https://en.wikipedia.org/wiki/Dear_Old_Stockholm

We Scandinawians know this song under another title: "Ack Värmeland du sköna".
Several versions during the time, but originally not jazz or bossa.
(Btw, I really like the bossa version, never thought about it that way)

If any interest, look at YT for the Swedish title. smile
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Cheers 🥂
GJ
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"Success is not counted by how high you have climbed
but by how many you brought with you." (Wil Rose)