btw, here a screenshot if you want:
the extras are:
★12枚限定初回特典：直筆歌詞原本（全12枚）をランダム封入
（初回出荷分の商品12枚に、ayuの直筆歌詞原稿が1枚ずつランダム封入されます）※1
it's not like there will be 12 booklets which have the lyrics in hadnwritten, theres 12 songs with lyrics, and there will be 12 sheets for each song pur in 12 diferent albums (CD+DVD and the CD+DVD inside the BOX, CD only is excluded -damn it! XD-) so each person that will get it will have only 1 sheet of one song ^^
★初回限定封入特典：シリアルナンバー入りアクセスカード封入
（ファンクラブ会員限定、未発表楽曲着うた(R)先行無料プレゼント）※2
This also is in the CD only, just a sheet with serial numbers for unreleased songs (the new songs?) to download in chaku-uta, only for TA members...
12 sheets means 12 songs with lyrics... If "THE introduction" has lyrics, I don't think they will do a sheet for such a short lyrics... so... maybe from 15, if 12 are full songs, only 3 interludes , and 1 would be the intro with short lyrics... and without 5 songs (RL, S/S, Yw/B) we would have 7 new full songs ^^