Mary Hallock-Greenewalt

After her mother began exhibiting symptoms of mental illness, eleven-year-old Mary Hallock and her siblings were sent to live with friends and relatives in the US,[3] where she spent the remainder of her youth in the Philadelphia area.

The couple had one son, Crawford Hallock Greenewalt, a chemical engineer who eventually served as president of the DuPont Company.

Unlike earlier inventors of color-music such as the painter A. Wallace Rimington, Hallock-Greenewalt did not produce a strict definition of correspondence between specific colors and particular notes, instead arguing that these relationships were inherently variable and reflected the temperament and ability of the performer.

[5] Her earliest attempts at creating this art entailed her construction of an automated machine where colored lights were synchronized to records.

However, these were not movies but films produced specifically to be performed by her earliest version of the Sarabet which was a machine for automatic accompaniment to records.