<Tr> <Td> ♭ VI </Td> <Td> V </Td> <Td> i </Td> <Td> i </Td> </Tr> <P> There are also minor twelve - bar blues, such as John Coltrane's "Equinox" and "Mr. P.C.", and "Why Don't You Do Right?", made famous by Lil Green with Big Bill Broonzy and then Peggy Lee with the Benny Goodman Orchestra . The chord on the fifth scale degree may be major (V) or minor (v), in which case it fits a dorian scale along with the minor i and iv chords, creating a modal feeling . Major and minor can also be mixed together, a signature characteristic of the music of Charles Brown . </P> <P> While the blues is most often considered to be in sectional strophic form with a verse - chorus pattern, it may also be considered as an extension of the variational chaconne procedure . Van der Merwe (1989) considers it developed in part specifically from the American Gregory Walker, though the conventional account would consider hymns to have provided the repeating chord progression or harmonic formulae of the blues . </P> <Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (April 2017) (Learn how and when to remove this template message) </Td> </Tr> </Table>

In a blues chorus the typical order of events is as follows