Is there a technical name for when a piece originally in triple meter is arranged into quadruple meter? (Usually this is done by doubling
the first a beat.)
For example, the quadruple-meter arrangement in Biden's inauguration ...
X: 1 T: The Star-Spangled Banner: Biden Inauguration M: 4/4 L: 1/4 K: Gb d/B/ | G2 B d | g3 b/>a/ | g2 B =c | d3 ||
... of the triple-meter "Star-Spangled Banner":
X: 2 T: The Star-Spangled Banner: Triple Meter M: 3/4 L: 1/4 K: Gb d/B/ | G B d | g2 b/>a/ | g B =c | d2 ||
I've heard similar treatments of "Silent Night" and "Away in a Manger" in shopping mall background music.