Your search for "studio 1 / blank (ja)" revealed the following:

PAT KELLY [Trouble In Mind / The Great Pretender]

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ID No. 193362 Label BLANK( LEE'S) (JA) Production B.Lee-60 Genre [A] Early Reggae [B] Ballad / Male Vocal Condition VG+ Soundclip

WENTWORTH VERNAL [Rainbow]

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ID No. 233116 Label BLANK(STUDIO ONE) (JA) Production Studio1-70 Genre [A] Reggae70sMid [B] Reggae70sMid / [A] Male Vocal [B] Version Condition EX- Soundclip