The brothers Rainer (b) and Werner von Gosen (g) and drummer Arno Bredehöft founded the three-piece combo Thrice Mice in Hamburg in 1966. As a beat band, they won several competitions in the Hamburg area and were even very popular and successful as a live act beyond the region, including at the legendary Fehmarn Festival. With a record contract offered as a prize, they went to Windrose Dumont Studios in Hamburg at the end of 1970 to record their first eponymous LP. By then, however, they had developed significantly in terms of style and even doubled their line-up with Karl-Heinz Blumenberg (voc), Wolfgang Buhre (saxes) and Wolfram Minnemann (org). Their debut album, with cover art by Witt design studio, was released in Germany in early 1971 on the major label Philips.

The four long tracks showcase a progressive, bluesy jazz rock dominated by saxophone and organ, with varied improvisations, influences from classical themes and some technical sound effects. Several more live performances followed, but the band broke up in early 1972 after Rainer von Gosens left. What remains is another rare and obscure German progressive album, now a sought-after and very expensive collector's rarity.