Integrative Levels Classification project ILC2 schedules developing schedules how it works people references
ILC class px90x

ILC developing version
Expanded class px90x

   ▲  broader class

▽ ⌕         px90x   ⋄                     arts ; artists  ≈ DDC 927 928
▽ ⌕         px90xm   ⋄                          music ; musicians
 
Connected classes:
 

specificity 
current: 99 

   
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