Gerald Jakubczak

Latest Release

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  Solfegissimo

  Read sheet music, note by note

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iPad & iPhone

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  Solfegissimo

  Read sheet music, note by note

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  DE-BLOCKS: Unlock It All!

  Upside down blocks arcade!

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  DYS Jeux et Outils

  Education

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  Notes4Pets

  Health, vaccines & memories

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