Fine-Grained Categories of onset:

• unexpected:event,
• reproductive:event,
• major:event,
• spectral:variation,
• spatial:measurement,
• fast:event,
• hemodynamic:disturbance,
• stressful:event,
• experienced:event,
• musical:event,
• coastal:change,
• developmental:change,
• critical:event,
• early:event,
• sexual:activity,
• transient:change,
• internal:change,
• acoustic:attribute,
• seasonal:variation,
• transitory:event,
• developmental:event,
• major:change,
• salient:event,
• overseas:event,
• individual:control,
• transitory:behavior,
• vital:event,
• metabolic:disturbance,
• visual:event,

Poetic Qualities of onset: