Ketalux - Ketamine Therapy EducationKetalux - Mental Wellness Authority
2018 · Review

Kaelen et al. 2018 - music as the hidden therapist

The hidden therapist: evidence for a central role of music in psychedelic therapy

Written by: Ira ZootMedical review status: Not yet clinically reviewed.Last updated: June 4, 2026Evidence: Kaelen M et al.. Psychopharmacology, 2018.

This page has been written and edited by the publisher. It has not been reviewed by a licensed clinician.

Quick answer
Why this study matters
The conceptual basis for how clinics design ketamine session playlists today.
Population
Synthesis of psychedelic-assisted therapy literature
Intervention
Music as set-and-setting variable
Comparator
n/a
Primary outcome
Subjective and therapeutic correlates

Key findings

  • Music consistently rated among the most influential session factors
  • Music-evoked emotion correlates with therapeutic outcome
  • Argues for music as an active therapeutic ingredient, not background

Limitations

  • Largely psilocybin and MDMA literature
  • Limited direct ketamine data

Read the original study →

Disclaimer
Educational summary only. A single study - even a landmark one - does not establish clinical practice. Discuss treatment decisions with a qualified clinician.
About the author

Publisher and editor of Ketalux, based in Chicago, Illinois. Ira is a ketamine therapy patient, not a clinician. This is editorial review, not medical review: Ira is not a licensed clinician and does not provide diagnosis or medical care. Ketalux does not accept compensation from providers in exchange for favorable editorial coverage, evidence ratings, recommendations, patient referrals, or organic provider ranking. Read the full publisher disclosure →

Educational use only. The content on this page is provided for general educational purposes and does not constitute medical advice, diagnosis, or treatment. Ketamine and related therapies carry risks and are appropriate only under qualified medical supervision. Always consult a licensed healthcare professional about your individual situation. Information may change as research evolves.