Poem: An Electromagnetic Bell in the Theatre (please comment)

An electromagnetic bell rings:

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in the ornate

nearly empty auditorium,

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in the bar

where patrons perform set pieces,

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in the cloak room

where fine furs hang patiently,

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and dressing rooms

where nervous actors wait.

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It rings again,

a final call.

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The ringing stops.

The clapper’s silent

oscillations die.