Music as medicine and gate keeper
In any case, the reason we used this music was to create a relaxed atmosphere and because we believe in the power of music as medicine. After all, humans are made of energetic molecular structures and music also vibrates and has it's own energetic properties. As a good friend of mine said: "it's proven physics!"
I'm always interested in encouraging my clients to own their experience. With hospital births, one of the first things I do when we get in the room (time permitting) is to give a tour of the stuff in there. Humans are symbolic creatures and all this stuff is filled with meaning. Until we become acquainted with stuff, all we have is our perception of what it is. When we meet and greet the stuff, we can attribute new meaning to it. I try to present the stuff in a positive way and make the room as friendly as possible despite the threat of the IV drip, forceps and invasive medical supplies. I find that the mind is often set at ease when we familiarize ourselves with the unknown.
The second thing I do is to personalize the room. I recommend that the mother wear her own clothes while in the hospital. I recommend that their own music be played, that they place their birth art in the room and so on so as to change the room from its original state. When women want to have an intervention and drug free birth, I suggest that they put a sign on the door stating their intentions: "drug free birth, please respect and do not offer". This way, those entering the room know the intentions and are also made aware of the fact that this room is not the room they were last in. Also, I find it sometimes works better than a code word when a mother is serious about requesting an epidural for example. When a mother is serious about diverting from her birth vision she can ask to remove the sign on the door. This way everyone in the room can support her in her boundaries. It also helps her support people advocate for her.