Music That Doesn't Break Your Concentration

Headphones

When I write, study for sermons, etc, I often like to listen to music to drown out other distrations and give my work some rhythm. If it's too lyric-driven (which is a lot of the music I like), it doesn't work. Here are a few of the albums I enjoy when I'm doing work that requires concentration and focus. Name in the comments some albums and artists you like to work to.