Solveig is a central character in the play Peer Gynt by Henrik Ibsen. She sings the famous "Solveig's Song" in Edvard Grieg's musical suite of the same name.
Here is an arrangement for Classical Guitar solo.

With standard notation and Tablature, with downloadable simple mp3 for audio help. 
Intermediate. 
Two pages, 2' min.

A Lonely Night is a slow latin mood tune for Guitar fingerstyle solo.

With dowloadable mp3 just for audio help. With standard notation and tablature.
Early Intermediate 1:35' min.

Pages: Two and a half (2 1/2) pages.

"Blue Moon" is a classic popular song written by Richard Rodgers and Lorenz Hart in 1934, and has become a standard ballad.
Here is an arrangement for Guitar or Guitar and voice.
Early intermediate, with tablature, 2:50' min.
Pages: Five (4) pages,.

Tablature has the advantage of a very short learning curve and does not require extensive study to learn while the audio file makes the score interpreting even easier.

Somewhere In Time, from the romantic fantasy drama film Somewhere In Time.
Guitar solo.
Early Intermediate. With standard notation and tablature (TAB).
Pages: Three pages (3).

Beauty and the Beast, is a song written by lyricist Howard Ashman and composer Alan Menken for Walt Disney Pictures 30th animated feature film Beauty and the Beast (1991).
The song's lyrics imply that the feeling of love is timeless and ageless a 'tale as old as time'.
For classical or acoustic Guitar solo or guitar and voice. Early intermediate
With guitar tablature.
With melody line.
With lyrics.
Pages: 4 pages, 2:15 min.