Wiktionary
prep.phr. (context idiomatic English) As a departure from the usual.
Wikipedia
"For a Change" is a song written by John Scott Sherrill and Steve Seskin, and recorded by American country music artist Neal McCoy. It was released in December 1994 as the first single from his album You Gotta Love That. The song reached number 3 on the U.S. Billboard Hot Country Singles & Tracks chart and peaked at number 8 on the RPM Country Tracks in Canada.
Usage examples of "for a change".
The evening breeze, light for a change, carried the faint and chilled bitterness of grubush, reclaimed soil from the fields ten kays to the east, and the even fainter scent of landpoison.
Since the Grand Metropolitan has seen fit to dole out some more funds, let us employ a gondola for a change.
Being respectably clad now, Inos moved around to the other side of the bench so she could face the hall and broil her back for a change.
And sometimes, for a change, I'd switch directions, going in the door and coming out again through the hatch.
Mosovich pointed at a spot on the view-screen for a change, just to drive the point home that, yes, it was almost show time!
During the rest of the day the doctor vainly kept on the watch for a change of weather.
I nodded my thanks for the compliment, as well as for the fact that she had not added 'for a change'.
At least he had the opportunity to salvage the wounded for a change, his and the T'swa's.
The general tone was angry for a change, which beat tired or mulish from Mike's point of view.
But I had a client-for a change-and I had a job to do, so I rubbed my gloved hands together, poured another plastic capful of black coffee, and kept an eye on the house across the street.
It held too many memories, most of them positive, but it was time for a change.
She was apparently dazed, one arm raised as if to shield herself, and, for a change, her mouth was shut.
Thus when contrary winds came mariners anchored and waited as patiently as they might for a change, and voyage to a port but two days' sail with a favouring wind was a matter of weeks when it was foul.
We had had a sail - a good all-round exciting, interesting sail - and now we thought we would have a row, just for a change like.