The good people of the Gifu supporters group – found on twitter at @brigatemamushi – do a great job of prepping songs & calls for each player at the start of each season, and this year is no different.
A list of the new songs, chants, calls etc can be found on the youtube page, so those of you who wish to get involved with the Nagaragawa atmosphere should give these a listen. The band do a great job of lifting the atmosphere at the stadium, and the more people that join in, the better that atmosphere will become.
They say it best themselves: みんなで歌おう! – Everyone sing together!