- Drag the .mp3 into osu.
- Go into editor
Use a random BPM/offset for the time being.Do your best to find the correct BPM/offset.- Place one hitcircle anywhere
- Upload the map (File -> Upload beatmap -> Beatmap help.)
- Post the link in this thread.
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Sies' edit:
It is recommended to discuss about timing on the Beatmap Discussion page rather than here. Good luck!