Who was Balabuva Satarkar, and why was he brought to Shirdi for the Ram Navami festival?

Balabuva Satarkar was a Haridas from Satara, famously known as the 'Modern Tukaram' for his exceptional Bhajans. Chapter 6 explains that he was brought to Shirdi to perform the Kirtan for the Ram Navami festival one year when the usual performer, Bhishma, was not present. Kaka Mahajani was responsible for bringing him. Balabuva had an annual commitment to perform at Siddha-Kavthe, but the cancellation of that event due to a plague provided the perfect opportunity for him to come to Shirdi instead.