"六弦アストロジー" (Rokugen Astrology) is HoneyWorks' second VOCALOID album. It contains a total of 14 tracks (2 bonus track), sung by Hatsune Miku, Kagamine Rin, Kagamine Len, GUMI and IA. It was first released at THE VOC@LOiD 超 M@STER 24. A crossfade of the album can be heard on Nico Nico Douga and YouTube. The album is purchasable on Lagoa.