There are at least four artists using the name; A Toronto-based DJ, an Australian band from the late 90s - early 00s, an indie-rock band based in Malmö, Sweden, and finally an instrumental psychedelic rock band from Berlin, Germany
These are photos from concerts where Sek played, so they may be of other bands that played the concert as well.
Sek / Karsk Dec 1, 2024 Berlin, Berlin, Germany Uploaded by Rock Engel
Weedpecker / Sek Sep 1, 2024 Berlin, Berlin, Germany Uploaded by Rock Engel
