The word "Imbolc" comes from the old Gaelic for "Ewe's milk" as this was / is the time when the female sheep began lactating offering a nourishing change from late winter's fare. Additionally, Bride , or Bridget, who is the patron "saint " of this time is known as a midwife- emergence from the darkness of winter, birthing new ideas and creativity in addition to the physical aspect of this role.
Maybe that will give you some ideas for songs
Best- Julia