Okay. Like, I don't really understand what I was supposed to do, but I managed to play a little. I just don't know how to get the blue and red items that are used to buy other songs.
All info on how to play is found in both the opening cutscene as well as the game's page description :) as for the red and blue fireflies, you can first obtain them from playing songs on the bell, then you can purchase market stalls with them to generate more.
