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| Real Name: Tracey Graham | ||||||||
| Also Known As: No known Alias | ||||||||
| Place Of Birth: Unknown | ||||||||
| First Appearance: Batgirl Vol.3 #20 (2011) Modern Age Villain | ||||||||
| Known Associates: Cluemaster, Figment, Jabberwock, Miranda, Slipstream | ||||||||
| Group Affiliation: The Reapers | ||||||||
| Base Of Operations: Gotham City | ||||||||
| Grudges: Batgirl | ||||||||
| Creators: Bryan Q. Miller and Ramon Bachs | ||||||||
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| Sound Generation: Harmony wears a power suit that allows her to generate sonic blasts. | |||||||
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| Tracey Graham was given a sound generating power suit by a mysterious group of criminals known as The Reapers. They set themselves up in Gotham City, at odds with Batgirl. | ||||
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| Harmony at DC Database | ||||
| Harmony at Comic Vine | ||||