Is it permissible to listen to a hypnotherapy session for increasing self-confidence that includes light, relaxing music?

The original ruling is that listening to music is forbidden by scholarly consensus and textual evidence. However, some scholars permitted listening to musical instruments for the sick person if it is definitively a treatment, as mentioned by Al-Ramli and Al-Shabramallisi. They based this on the permissibility of treating with impure substances when necessary. Conversely, the Hanbalis held the view that treating with forbidden things is absolutely prohibited, citing the hadith (definition) "Do not seek healing with unlawful things" and Umar ibn al-Khattab's prohibition of touching alcohol.