The muse can be male, female, animal, spiritual, or a geological feature- WHATEVER gives one inspiration. As I have discussed with LH, I find that I hear my muse in that "small, quiet place inside", were others go to meditate. Sometimes one can know who the muse is- but not always. Take a look at "Lives of the Muses" - it is a good treatment of a number of artists and their ( human) muses.