This delights me. I’ve worked with Soundex, which uses a rather different set of digit/consonant associations, but the “major system” Susam uses was new to me.

This delights me. I’ve worked with Soundex, which uses a rather different set of digit/consonant associations, but the “major system” Susam uses was new to me. Apparently [0] it has centuries of pedigree—with the specific pattern Harry Lorayne used dating to the turn of the 19th century, laid out by a delightfully named Mr. Von Feinaigle. [0] https://artofmemory.com/blog/history-of-the-major-system/ https://artofmemory.com/blog/history-of-the-major-system/