anime songs on repeat

Okay, here is where my very bizarre fancy for anime and geeky love of languages rear their ugly heads.  On repeat this week are five anime songs of which I am learning the words, the Japanese words that is.  One is from Miyazaki's Spirited Away called "Itsumo Nando Demo" which translates to "Always with You".  I already know this song by heart  and in learning it, learned how to make the sounds from the romaji translation.  From there I went on to learn the "Princess Mononoke Theme Song" and the "Tatara Women Work Song" from Miyazaki's Mononoke Hime. However, with my recent purchase of Origin: Spirits of the Past soundtrack, I want to learn two more songs sung by Kokia, a popular pop artist and opera trained Japanese singer.  The first is the opening song called "Chouwa Oto (with Reflection)" and is very fast with complicated vocals.  The second is "Ai no Melody" which is just very very long. But I am eager to be able to sing without the words in front of me so I can hear it over and over in my head alone. Only then will my heart be satisfied.