There are at least 2 bands called Partner

I. Partner is a Canadian punk duo from Sackville, NB, consisting of Lucy Niles and Josée Caron, whose topics of music cover women of dreams, sex bracelets, and knives that are too hot.

2. Partner is a hardcore band from The Netherlands. The newest wave in Groningen x Leiden Hardcore. With (ex) members from Suffering Quota, Glitch, Disuse and Korfbal. They released their first demo on March 22, 2023.
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Artist biography from last.fm