Nocturne in C-sharp minor, Op. posth. (Chopin)
This video has Natalya Romaniw singing against the beginning of Frédéric Chopin's Nocturne op9 no1. She sounds wonderful! So I went looking for more. As often happens during an Internet search, one often finds something else, similar but also great, and this time I wanted to share the reference.
I (re)discovered the piece arranged for violin and piano. I say rediscovered since, according to the Wikipedia page, the piece has been used several times in popular media, so I've likely heard it, but somehow it didn't register until now.
I highly recommend listening to this piece at once, and Youtube has several to choose from. Here's one:
An arrangement by Nathan Milstein, whom I had not heard of until now. Hey wait, you can even hear him play:
Hopefully you were able to make it back here. Not sure I could have as I literally had to listen to these over and over, and i don't even like solo violin that much. Usually, I prefer my violins safely contained in the string section of an orchestra, however this was a rather tas te-shaping experience for me. Hopefully you'll enjoy these as much as I do.
If you wish to hear the piece as originally composed by Chopin for piano only, you should be able to do so from the Wikipedia page linked above. Or, listen to ?Valentina Lisitsa's rendition:
Sheet music here.