As the boy tames the wild bird, it evokes pleasure in him away from his hardship in society, the bird is bettering us here.
This is wrong separated with a comma as it's a complete sentence. Does it need a colon instead? It means a substitution of needs.
How could you rephrase it so it works like this example. Perhaps: the bird bettering us here.
Steven played the difficult concerto, his fingers flying over the piano keys.
Preliminary point: Absolutes are non-finite clauses, as in your second example, but The bird is bettering us here is a finite clause, so it can't be an absolute. It appears that some heavy punctuation is required: a full stop or a semicolon perhaps. Where did you find the sentence, or did you invent it?
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Preliminary point: Absolutes are non-finite clauses, as in your second example, but The bird is bettering us here is a finite clause, so it can't be an absolute.
It appears that some heavy punctuation is required: a full stop or a semicolon perhaps.
Where did you find the sentence, or did you invent it?