Blue Princess Memories is the first Aoki Lapis-only compilation, involving 10 Vocaloid Ps such as DATEKEN, Chom-P, Muhmue, and more. It consist of 16 tracks, several of which are arrangements and/or cover songs or original Lapis songs. The album's mastering done by "Shibayan", album illustration by "Nagane Ryou" and design by "Yamaneko".
Several notable tracks from the album include "trick art" (cover by Aoki Lapis) by DATEKEN, "Dai Sorairo no -HI-TO-MI" (cover by Aoki Lapis) and "Princess wa Yume no naka". Two of the "bonus tracks" ("apricot" and "moka") are sung not by Aoki Lapis but the singer Hinanata.
The album was first released on VOC@LOID M@STER 21 on July 8th 2012. It's still available for purchase / mail order on Amazon, Yahoo Store, and D-Stage. A crossfade of the album can be heard on Nico Nico Douga here; and it's site on Celo Project here.