The first two days are at Ravintola Torvi, the last show is at Sopenkorpi, Kesanto. The first day might be less interesting for this forum, though the bands are great psychedelic rock (SexPhoneMan, Malamujér, The Aeon, Rohtokallion Fakiirit).
Thursday is more avantgarde, noise and dada: Lörsson, Kolumbia, Möyhy-Veikot and Electric Hobo. These are 5 euros per night.
29th Käki plays all night long (psychedelia, junk ambient drones, stream of consciousness) at Kesanto, from 21.00-06.00 if the weather allows it. Seems like it does. BYOB, free of charge.
Here's Facebook event with more info.
https://www.facebook.com/events/1721105421341413/