Memoir and Music

A number of people have told me that music has had distinct and healing effects on them during times of great stress. Others have mentioned that music helped to get them through many of the rougher transitions of life. It doesn't seem to matter what sort of music, although longer pieces (orchestral, choral, operatic) seem better able to work their magic than shorter pieces. It's a matter of what speaks to the individual at the time. Think of the teenager with earbuds who seems to need music to get through his day. Since music is clearly a healing modality (as well as a pleasure, a delight, an inspiration) why do we use it so haphazardly? Why don't doctors seem to know about it? Why do they give us pills and ignore the experience of harmony that is so readily available? Why is music barely taught in schools?