bichromatic

Of two colors.

The bichromatic blue-and-white Jewish pet accessories, littered with stars of David, create a lifestyle brand for Judaism to rival other popular branding schemes, especially those of Christian America.

Describing a graph with edges of two possible colours.

Describing a spectrometer (or similar instrument or system) capable of analysing two wavelengths at the same time.

Employing or relating to a quarter tone scale.

Its title is "Musik mit Vierteltönen," and it contains the sum of the author's experiences with the "bichromatic harmonium" of his own construction.

Bichromatic music on the electronic orchestra is the next step in the musical art of the 20th century.