Add MIDI-REPA citation

README.md

@@ -107,5 +107,17 @@ recordings keep their own Jamendo Creative Commons licenses.
 
 ## Citation
 
-JamendoMIDI was introduced with MIDI-REPA (Song-Ze Yu, Fang-Duo Tsai, Yi-Hsuan Yang,
-2026). The paper will appear on arXiv soon; its citation will be added here.
+JamendoMIDI was introduced with [MIDI-REPA](https://arxiv.org/abs/2610.20967). If you use
+it, please cite:
+
+```bibtex
+@misc{yu2026midirepa,
+      title={MIDI-REPA: Improving Text-to-Music Generation with Symbolic Representation Alignment},
+      author={Song-Ze Yu and Fang-Duo Tsai and Yi-Hsuan Yang},
+      year={2026},
+      eprint={2610.20967},
+      archivePrefix={arXiv},
+      primaryClass={cs.SD},
+      url={https://arxiv.org/abs/2610.20967},
+}
+```