Recursive Call is OSTER project's 10th album. It contains 12 tracks, mostly instrumental with a few songs featuring YURiCa and Tokiwa Yuu. It contains classic songs from OSTER project's earlier works such as "demon fire" and also "Violet Rose", a sequel to an earlier OSTER project song released in 2006 on her muzie page called "Blue Rose". "Recursive Call" is OSTER project's second instrumental album and "Miracle Paint (PSB REMIX)" actually appeared in OSTER project's first album, Miku no Kanzume. A crossfade of the album can be heard on Youtube. The official album website is available here.