The irresistible “racka-dongka ka-dong ka-dacka racka dong-dong” of her vocalized “Jungle Drum” made her famous around the world 15 years ago. She’s also long been known to fans of the “Lord of the Rings” trilogy after she sang “Gollum’s Song” for “The Two Towers”, the second part of the fantasy series, in 2002. Since then, Emiliana Torrini, a versatile Icelandic singer with Italian roots, has been somewhat quiet. But now she’s back in the spotlight with her first album in 10 years and an accompanying European tour this summer. The new album – “Miss Flower” – is based on a box of love letters …