Johann Davidus Bass, Johann Martinus Bass and Johann Domenicus Bass were born in the slums of Vienna and Munich between 1725 and 1732. Maternally unrelated, they are said to share the same father. Rumour has it that they are the product of love affairs of a famous composer, which were to this day kept secret by various biographers. Three young men brought together by poverty and artistic necessity, the as-yet unacquainted half-siblings formed an engineering and art collective that was the envy of the international community.