Theatrical concept-driven rock from Buffalo, NY.
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Once Upon a Flatline has had 1 concert.
Once Upon a Flatline is most often considered to be Rock, Metal, Hardcore, and Screamo.
The last Once Upon a Flatline concert was on February 27, 2022 at Montage Music Hall in Rochester, New York, United States. The bands that performed were: Sarah & the Safe Word / V Is for Villains / Once Upon a Flatline.
