This is a really gorgeous waltz, as played by french duo Pauline Caplier and Sylvain Letourneau who play as Bohème. I had thought they called themselves La Bohème, and as such could be shoehorned under the ‘tunes that start with L’ theme at melodeon.net this month… but no! Going to have to find another tune that does! Don’t know the real name of this tune, but fairly confident it was written by Pauline and Sylvain – they play their own compositions mostly.
See the original on their lovely concert on their facebook page, about half way through. https://www.facebook.com/studiolaclaranbox/videos/234447080967024/
Played on a Van der Aa Compact III in G/C.