In 1990, the band threw themselves back into touring, and over the summer, released an album called "Symphonic Buck-Tick in Berlin", featuring orchestral versions of some of their songs performed by the Berlin Chamber Orchestra. In the fall, they went back to the studio to work on their sixth album, "Kurutta Taiyou" ("Crazy Sun"). They spent much more time on this album than any of their previous ones, and the difference was noticeable. The sound is much deeper and more sophisticated, using many more studio production effects than previously.