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2 votes

Some examples would be Route 47 from HGSS and Zinnia’s theme from ORAS.

closed with the note: Very trivial and finding an answer would take too much work for what it's worth.
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Ecruteak City and a bunch of Battle Frontier themes from HGSS, as well as the Soaring in the Sky theme, most of Wally’ themes and all of Zinnia’s themes from ORAS are a few I can name off the top of my head.
In RSE, Wally used the regular trainer battle theme, so ORAS's Wally theme was new.