"the VOCAJAZZ vol.1" is a compilation album where "VOCALOIDs meets jazz". It contains 12 tracks, sung by Hatsune Miku, Kagamine Rin, Megurine Luka, GUMI, VY2 and Nekomura Iroha. It features producers that specialize in VOCAJAZZ. The mastering was done by Kihei. It was first released at THE VOC@LOID MASTER 16, and later at 17.