Yes, Geil is definitely a goth band because most of their albums belong to the Gothic Rock and Deathrock genres, which are among the core subgenres of goth music. Albums like Velnadet, Jangle Junk, and I'm are examples of their goth sound.
Geil is located in Japan, active in 1986 — 1990. You can find more information about Geil on their GothDB band page.
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