CR1 is an original method by Tommy Hoppe. It gives the twelve colors and the twelve notes one shared set of natural numbers, so a color can be named as a tone and a tone can be named as a color, and composition can be worked in either. It was called Symphonic Chromatic Fusion when it began.

The record

1996. The method begins, as Symphonic Chromatic Fusion. Attested by the art historian Sarah Katherine Griffin Doyle in her 2003 thesis.

14 March 1997. Theory Book IX, pages 67 and 68. Signed and dated, with pitch letters written across a drawn figure.

1998. The Primary Staff.

7 July 2000. First public presentation. Move*ment Summer 2000 Jackel Studios Series, 443 Broadway, SoHo, New York.

2003. Doyle's master's thesis and exhibition proposal, Fashion Institute of Technology.

2007. Symphonic Chromatic Theory published.

2013. Thirteen Lectures on: Fusion of Color, Music and Geometry, St. Bonaventure College, New York.

May 2026. Residency at Residencia Corazon, La Plata, Argentina, and two lectures at Universidad Nacional de La Plata on 5 and 19 May.

2026. Continuous public lecture and video record at @tommyhoppeart.

How it is being released

Tactics publish as short episodes on Instagram, with lectures and longer form video on YouTube. The full theory, the diagrams, and the expanded explanations are being organized into a digital and printed book. Forty-nine theory volumes are complete and the fiftieth is in progress.