Simon Reynolds, often credited with coining the term postrock, defined it as "using rock instrumentation for nonrock purposes." Following suit, the preponderance of postrockers focus on "guitar texture," "percussive moodscapes," and other such sonic intangibles. Then there's Do Make Say Think.
While this Toronto-based demicollective definitely leans toward the cinematic, mood-heavy droning that defines much of the genre, the band is equally adept at applying a near-literal role reversal to its music. The band plies what might reasonably be called "pre-rock," using nonrock instrumentation for rock purposes. So while guitars are relegated to nuance and drums to ebb and swell, clarinets are repurposed to voice power chords, and stabs of orchestral arrangements serve both as percussion and as riffs worthy of any classic guitar album.
Do Make Say Think plays tonight at Great American Music Hall. (8 p.m., $16)