Editing Shape note (section)

==Rise of seven-shape systems==
By the middle of the 19th century, the "fa so la" system of four syllables had acquired a major rival, namely the seven-syllable "do re mi" system.  Thus, music compilers began to add three more shapes to their books to match the extra syllables.  Numerous seven-shape notations were devised. Jesse B. Aikin was the first to produce a book with a seven-shape note system, and he vigorously defended his "invention" and his patent. The system used in Aikin's 1846 ''Christian Minstrel'' eventually became the standard.  This owes much to the influential Ruebush & Kieffer Publishing Company adopting Aikin's system around 1876.  Two books that have remained in continuous (though limited) use, [[William Walker (composer)|William Walker]]'s ''Christian Harmony'' and M. L. Swan's ''New Harp of Columbia'', are still available.  These books use seven-shape systems devised by Walker and Swan, respectively.