Scansion

Scansion or a system of scansion (verb: to scan) is the act of determining and (usually) graphically representing the metrical character of a line of verse. In classical poetry, these patterns are based on the different lengths of each syllable, and in English poetry, they are based on the different levels of stress placed on each syllable. In both cases, the meter often has a regular foot. Over the years, many different systems have been established to mark the scansion of a poem.

Overview

Systems of scansion, and the assumptions (often tacit or even subconscious) that underlie them, are so numerous and contradictory that it is often difficult to tell whether differences in scansion indicate opposed metrical theories, conflicting understandings of a line's linguistic character, divergent practical goals, or whether they merely constitute a trivial argument over who has the "better ear" for verse.

To understand any form of scansion, it is necessary to appreciate the difference between meter and rhythm.