I might be able to help you out a little! I'm a huge Sondre fan.
If you are looking for things similar to Dead Passengers I would recommend getting the album that song is on, Faces Down. Also, Two Way Monologue would be a good album to look into. The Duper Sessions is a little more of a mellower jazzy love song album, Phantom Punch is a little bit more rockin', and Heartbeat Radio is poppy-ish. All wonderful albums, he excels at so many different styles! If you ever get the chance to see him live I would take it, I've seen him 3 times now and he's great. He's a talker so the shows are always interesting. He's super nice as well, he always hangs around after the shows to chat with everyone.
If this helps at all I'm going to pick a song from each album that I, personally, feel is a decent representation for that particular body of work. Maybe you can look them up and give them a listen, then it will help direct you to whatever album would fit you best?
Faces Down - You Know So Well
Duper Sessions - (I Wanna) Call It Love
Phantom Punch - Say It All
Two Way Monologue - Stupid memory
Heartbeat Radio - Amighty Moon
Hope this helps a little!
