Can you tell me about Balabuva Satarkar? Why was he called the 'Modern Tukaram' and what brought him to Shirdi?

Balabuva Satarkar was a renowned Haridas, famous for his Bhajans, which earned him the nickname 'Modern Tukaram'. Chapter 6 explains that he originally resided in Satara and had an annual commitment to perform the Ram Navami Kirtan at Siddha-Kavthe. However, one year a plague struck Kavthe, leading to the cancellation of the festival. This unforeseen event provided him with the opportunity to fulfill his desire for Sai Baba's Darshan. He met with Bhausahab Dixit, expressing his wish to visit Shirdi and perform Kirtan there, which set the wheels in motion for his significant visit.