Skyward Sword is an amazing game, but it has a major glitch that if invoked, will disallow you from playing further. Basically, if you go to Lanaryu Desert for the first Song of the Hero quest, the game will be unable to progress. The quest itself requires Link to complete various quests involving three elemental dragons.
If you take down the Thunder Dragon first and walk to Golo, then the game will be unable to progress. Nintendo is working on fixing this glitch for future prints of the game in order to correct this horrible problem.
Those who contact Nintendo regarding this get an email that details step-by-step how to trigger the glitch and means of avoiding it, which I have reproduced below.
We have been made aware of the issue that results in being unable to progress in the Song of the Hero quest. If the game has been saved after completing the sequence of events, it will no longer be possible to proceed through the game on that save file. The only options at that point are to either start the game over or to use an earlier save file to continue.
The situation is caused by performing the following sequence of events during the Song of the Hero quest:
1. At the beginning of the quest, go to Lanayru Desert to retrieve the song of the Thunder Dragon.
2. In the Lanayru Mine, speak with Golo the Goron.
3. Complete the Thunder Dragon’s event, and receive his song.
4. Before heading to the forest or volcano regions, speak with Golo in the mine again.
5. At this point, the forest and volcano events will no longer occur, making it impossible to continue.
This issue WILL NOT OCCUR if the Fire and Water Dragon songs have already been collected before collecting the Thunder Dragon’s song. Talking to Golo in the Lanayru Caves will also NOT trigger this issue.
If the game has been saved after completing the sequence of events, it will no longer be possible to proceed through the game on that save file. The only options at that point are to either start the game over or to use an earlier save file to continue.
I wish I had a better answer, but I’m afraid there currently is no other fix available. I can assure, however, that we are documenting all feedback we receive on this issue. Thank you for your patience and support.
Considering the non-linearity of the quest, something like this can be a bit surprising but at the same time, be expected to crop up. If you have started this quest and have done the Thunder Dragon first, you’d better be ready to marathon the other two.
Basically, if you do the Thunder Dragon first, don’t talk to the Goron in the mines.