Your search for "rio (uk)" revealed the following:

RITA MARLEY [Pied Piper / It's Alright]

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ID No. 241327 Label RIO (UK) Production Studio1-60 Genre Rock Steady / Female Vocal Condition EX-(NOC WOL) SoundclipHo Ska / Bitter Sweet Ballad

CALVIN FOLKS [You'll Never Know / Is It True]

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ID No. 240977 Label RIO (UK) Production UK Genre Ska / Male Vocal Condition VG(NOC) Soundclip* 1963 UK Early Ska Vocal.

PATRICK & GEORGE / LLOYD CLARKE [My Love / Fellow Jamaican ]

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ID No. 215920 Label RIO (UK) Production JA Genre Ska / Male Vocal Condition VG- Soundclip* パチノイズ目立ちます。

THE PIONEERS [Never Come Running Back / Give Up]

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ID No. 235175 Label RIO (UK) Production Caltone Genre Rock Steady / Male Vocal Condition VG+ Soundclip* Caltone's Rock Steady.

THE RIO GRANDIS / BABA BROOKS [Samphey Man / Special Event ]

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ID No. 235834 Label TREASURE ISLE (JA) Production Tresure Isle Genre Ska / [A] Male Vocal Group Vocal [B] Inst Condition VG- Soundclip* samphey man = 詐欺師