each lim can have its own tmu which can be used for moh, therefore each lim can have its own music source, but generally the music source is daisy chained across from lim to lim. you must be take care for different customers music sources as if a digital route is shared it will take the music source in the lim that the tlu resides.
In theory, theory and practice are the same. In practice, they are not.
RFBOI