Often used to describe bands like Pantera and Exhorder. With mid-tempo riffs similar to those found in Thrash Metal and a tendency to focus more on groovy syncopation and heaviness than outright speed.
Been on a bit of a post metal binge lately comparing apples and oranges.
Neurosis-Times of Grace-continual repeat
CUL-The Beyond repeat
Richard Strauss' stone poems (Don Juan, Don Quixote and other famous pieces)
En Queue-Neurosis-A Sun that Never Sets