There's no trumpet lines on this album Abark but there are a few nice piano lines in some songs. If you like El Cielo I don't think you'd be dissapointed with the album. There are some really good tracks on it.
As far as what does dredg sound like that's pretty tough to describe. They have a fairly unique sound, or at least to me they do. I'm pretty sure they have some songs from all their albums up on their website
www.dredg.com