SOLVED. Urban fantasy, Romance, YA: in the first chapter, a girl needs to go on stage, talks to a beautiful boy that plays the flute. [s]

[Alessandra]

Or, at least, that is what I remember.
I also remember quite clearly that I read this chapter because it was suggested or even available in books like: Wicked Lovely, or Silver, or something like that. Hence, I would expect the male protagonist to be a fae of some sort.
Definitely a romance/love story, definitely a YA. Definitely 10, if not 15 years old.

Thank you guys!

[SBC]

That sounds familiar. Is it Lament: The Faerie Queen's Deception by Maggie Stiefvater?

[Alessandra]

Oh yes! That’s it! It’s a 100% Lament! I kept on looking for something starting for “S”, but the “S” was for Stiefvater!

Thanks a lot! This is solved!
I knew I could count on you.

[SBC]

Great! Glad I could help.