it depends much from the set you have.
in my experience, if i am home in my room, i like to have some minimalistik music, because i feel a silence trip between 4 walls becomes very sterile, it usually never got me very far..
i allways felt the experience indoors was being limited by the limits of the house or something, so i just let the music guide me.
for me the best auditive experience to add to a hiper space journey, is being in the midle of the nature, in silence, but receptive to its sounds.
listening to the wind, and the tree branches while the wind passes, the crickets, the frogs, etc.. allways was the most pleasent experience.. and its the way i allways got the best results independent of doses, etc..
but in the other hand, being in the beach for example, listening to the waves, allways got me a revolving experience, very limited my fisical/emotional/mental dimensions, not good for breaking trough, but defenitly good to seek an healing journey in any of those realms..
in matter of sound there is a lot to explore, we can use specific sounds for specific purposes..
Healing someone is an act of love, but how can you love someone whitout loving yourself first?