Acknowledgements
We thank Bjørn Stensrud, Monika Geretsegger, Sunniva U. Kayser, Sheri Robb, and the LongSTEP user advisory group consisting of Trude Os, Signe H. Stige, and Anette C. Røsdal for valuable discussions and input during the phase of developing the TF questionnaires. We gratefully acknowledge everyone involved in reviewing and rating the audio and video recordings which was a time-consuming and logistically challenging job that demanded a lot of patience. We are thankful to research assistant Aida Mai Ceesay for her efforts for the study. A special thanks goes to the families who allowed us to record them in intimate moments during a challenging time of their lives and to the music therapists who allow us to learn from them and their direct experience of implementing this approach into the real world for the first time.