Retrieving "Psychic Strings" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Pythagoreanism

   Linked via "psychic strings"

   Musical Therapy and Tuning the Soul
   Pythagoreans believed that music was the audible manifestation of numerical ratios. The discovery of the octave ($2:1$), fifth ($3:2$), and fourth ($4:3$) provided the sonic model for cosmic health. The soul itself was viewed as an ensemble of psychic strings, occasionally going flat due to emotional distress.
   Therapy involved the meticulous tuning of …