Actus Model

A young Bach’s early masterpiece — already among his most profound cantatas.

The calm major-key opening conceals proportions rarely encountered — yet familiar to anyone who has held an understated 18th-century Italian instrument. Hidden relationships, subtle and precise, reveal a form of intelligence that has quietly shaped generations of Baroque music-making.

The Actus Model asks whether an instrument can embody the atmosphere of this opening — the quiet intelligence, the balance, the subtle tension — while remaining capable of far more.

A theme from this cantata reappears in the Johannes Passion — unmistakably Bach. Its geometry informed the mark you see here, which will soon take form as a model of its own.

On rare occasions, a Lineage Study gives rise to a small number of complete instruments while the work is still unfolding. These are not finalized models, nor steps toward one. They are singular outcomes of a specific inquiry, shaped by the same listening, constraints, and responsibility as any instrument that leaves the atelier — yet bound to the moment in which the question was asked. To carry such an instrument is to accept its unfinished nature not as a limitation, but as a form of shared authorship.