[Tony G]

So if we look at it like this:

01.THE introduction - obviously an interlude
02.Microphone - sounds like it's going to be a rock number
03.count down - interlude to change from rock song to ballad.
04.Sunset ～LOVE is ALL～ - ballad
05.BALLAD - ballad
06.Last Links - ballad?
07.montage - interlude to change to..
08.Don't look back - hard to categorise.. its definitely not a ballad
09.Jump! - sounds like an upbeat song, could be an interlude to change to the electro songs like disco-muncation.
10.Lady Dynamite - PV in a club, so probably an electro song
11.Sexy little things - sounds like this will be an electro song given its next to lady dynamite and the title, and ayu's habit of putting songs next to each other that fit the same genre
12.Sunrise ～LOVE is ALL～ - upbeat electropop
13.meaning of Love - interlude from upbeat songs to a ballad
14.You were... - ballad
15.RED LINE ～for TA～ [album version] - midtempo

So there are two interludes that are potentially ones in between a upbeat song and a ballad. I don't think there will be two interludes that will serve the same purpose. So maybe one of countdown and meaning of love are not interludes, and Jump! is? who knows, somebody tell us >_<

I doubt both montage and Jump! are interludes unless she's sandwhiching them around a song in the middle of the album.

Its entirely possible that the album will flow from Don't look back - Sunrise without an interlude, which makes me think Jump! isn't one.