So I was messing around with the all songs cheat and decided to play the song of healing in reverse not thinking anything would happen. But it did recognise the song, it played no music then this text bubble appeared for a single frame
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Bro played the secret song of hurting
Its a leftover from Ocarina of Time 3D and its N64 variant. MM3D and MM on N64 have Saria's Song and Sun Song as a leftover from their previous game. The difference is that Saria's Song in N64 played the Moon final hours theme, Which i assume something changed with this version.