The brothers Rainer von Gosen on bass and Werner von Gosen on guitar founded the three-piece band Thrice Mice in Hamburg in 1966 together with drummer Arno Bredehöft. 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 Studios in Hamburg at the end of 1970 to record their first LP. By then, however, they had developed significantly in terms of style and had even doubled their line-up with singer Karl-Heinz Blumenberg, Wolfgang Buhre on saxophone and organist Wolfram Minnemann.

Their eponymous 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 sextet 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.