I can’t remember exactly when it was, but probably about 15 years ago, I went to see a band called Because of Ghosts perform. They were a post-rock outfit from Melbourne. At the time I had no idea what post-rock was, and I’m still not entirely sure. I know I like bands that refer themselves as post-rock. A quick Wikipedia search shows that post-rock is music played with instruments that are generally found in rock, but producing music that doesn’t sound much like contemporary rock.
The music is generally based around entire albums/records rather than individual songs, with strong themes running through the album tracks.
In more recent times, I’ve started listening to more of these bands, actively seeking them out, and one of my favourites is pg.lost. I’ve embedded one of their albums. Have a listen. This one really deserves to be listened to in its entirety from start to finish.