Deutsch

Building upon research by Roger Shepard and Jean-Claude Risset, Deutsch found a way to build a "staircase" of musical tones that seems to both go up without end, and just like in Escher's illusion, they appear to never go up to another octave. By changing the harmonics of each tone, Deutsch had in effect, turned a linear musical scale into a circle.

Diana Deutsch conducts research on the perception and memory of sounds. Some of this has inspired her to develop musical illusions, tricking people's ears in the same way artist M.C. Escher tricked people's eyes.

Riley's father, Reuben, spoke Deutsch in his boyhood home and did not learn to speak English until after his childhood even though he came from Irish roots. Riley's ancestors kept alive many of the old folktales and stories of their lives. Few of these Deutsch tales survive.

This letter had to be written in Deutsch because neither Paul nor Harriet knew Danish.

“We sing our Sunday hymns a cappella, too,” Sadie said. “But Amish songs are very different from yours. They're written in Deutsch, and there's no harmony.”

Riley's father, Reuben, spoke Deutsch in his boyhood home and did not learn to speak English until after his childhood even though he came from Irish roots. Riley's ancestors kept alive many of the old folktales and stories of their lives. Few of these Deutsch tales survive.