Barcode and Private Playlist

[Dagelen]

Hello guys,

I'm new here so I want to ask about two things.

First is I already made a playlist and will send it to my crush. I make the playlist private. Can I still share the link to her without make it a public playlist?

Second is I know that songs have their own specific barcode which we can scan. My question is does the playlist has their own barcode? Or just the song that has a barcode?

I already googling that we can make the barcode from the playlist but it's the square barcode which I'm not looking for. I want that unique Spotify-graph-barcode in my playlist. Is it possible? 

Thank you