The roads are inconvenient, so many participants have to walk to the nearest city, which takes about a day, and then take a train to the host city, spending another day on the train.
As for why there are so many bands in the South Wing Region.
The main reason lies in the tremendous improvement of the social atmosphere by the Sandog Temple, where the atmosphere between neighbors is like that of friends, and the locals enjoy singing and dancing. They can even craft their own lutes and drums.
Three strings, a resonance box, and a long neck with three tuning pegs, this is a lute.
A cowhide stretched over a specially shaped wooden barrel becomes a drum.
Besides, they have their own flutes, harmonicas, seven-stringed instruments, five-stringed instruments, and with the addition of hand drums and other regional instruments, a band is formed.
They just need an open space to perform.
As long as the atmosphere is lively enough, that's all it takes.