1977-07-25 · 12-inch vinyl · 10 tracks · original issue.
This is the GW-4029 original issue of Taeko Onuki’s “SUNSHOWER”, released on 1977-07-25 in 12-inch vinyl format. The edition contains 10 ordered tracks. Its release date identifies this particular issue; the album itself belongs to 1977. Catalog number, medium and date together make this a more precise reference than the album title alone.
The sequence opens with “Summer Connection” and closes with “振子の山羊”. The Atlas also documents CRJ-1016-17, dated 2020-08-08, with 10 tracks. These remain separate editions even where their song lists overlap.
The listed label is PANAM. These are release specifications, not a listening comparison or proof of identical masters on other formats. The linked album essay supplies the broader musical context.