First things first. Make sure you have some luck on your side :) Just kidding. Japan's smaller regions welcome the autumn or the harvest season through music and other celebrations. While travelling to Japan in October this year, I by chance happen to witness this magnificent festival.
Some great things do come for free.
Kanuma is a station on the JR Nikko line. If you happen to buy the JR travel pass ( which most foreign traveller do) this is an absolutely free spectacle for you.
I was on a one day trip to Nikko, with plans to spend the night at Nikko, before I leave for Mount Fuji next.
But, Japan had greater plans for me. After I returned to my hostel at Nikko in the evening after a fulfilling day of sightseeing at Nikko, my hostelmates were preparing to leave for Karuma to witness the music festival. The lady at my hostel, urged us all four women to go see it.