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In 1835, Walker published a tunebook entitled The Southern Harmony, using the four-shape shape note system of notation. In 1866, he published another tunebook entitled Christian Harmony , in which he changed from four shape to seven shape notation. He incorporated over half of the contents of The Southern Harmony in the Christian Harmony. For the additional three shapes, Walker devised his own system - an inverted key-stone for "do", a quarter-moon for "re", and an isoceles triangle for "si" (or "ti"). Editions of the Christian Harmony are still available printed with Walker's system, as well as in the more common shapes patented by Jesse B. Aiken . The standard four shapes, the Aiken and Walker seven shapes, and other shape note systems may be viewed at What are the Shapes and Why?
People stubs Walker, William Walker, William Walker, William