The phrase "In a different vein" is correct and usable in written English.
You can use it to indicate that you are bringing up a new or different topic to discuss, or to signal a change in direction or tone. For example, "The discussion of Civil Rights has been important and necessary. In a different vein, let's now consider other ways we can promote equality for all."
In a different vein, Mabbot argues that 'qualitative differences of content alone determine sub-divisions within our continuous experience'(1951: 166).
In a different vein, we're then treated to the previously hyped face-off between Stephanie and Vickie.
In a different vein, three of the six paintings in this show are diptychs with panels above and below occupied by large, simple curved shapes.
In a different vein, several oils on paper are striking floral images in bright hues (although one is all black) on very light grounds.
In a different vein, we dislike "human-rights abuses", when a more vivid and telling term like "torture" or "murder" is usually available.
In a different vein, Mia Hansen-Løve Hansen-Løvede jeunesse (Goodbye First Love) offered an emotionally satisfying story about the lingering power of first love.
In quite a different vein is the mural "Old King Cole" (1894), a large triptych originally done for the University of Pennsylvania's Mask and Wig Club in Philadelphia.
In quite a different vein, Olivia Laing's debut, To The River, has a Sebaldian edge to it that lifts it out of memoir and biography into something far more tantalising and suggestive.
And in a completely different vein, a recently built complex around a new marina upstream features chain hotels that wouldn't look out of place in an airport.
It will include the apocalyptic sensibility of films by Jack Goldstein, the California artist who died in March at 57, that surfaces in a completely different vein in the drawings of 30-year-old Banks Violette or the video work of Chloe Piene or Aïda Ruilova, both New York based and both in their 30's.
18); and, in a very different vein, his performance as a troubled American anthropologist who lights a spark in a Swedish housewife (the brilliant Bibi Andersson) in "The Touch," Ingmar Bergman's first English-language film.
