Update README.md

README.md

@@ -115,13 +115,14 @@ For more detailed information on the data collection pipeline, please refer to S
 
 ## License
 
-This dataset is distributed under a **Custom License** (see the `LICENSE` file for full details). Key points include:
-
-  * **Usage:** Strictly for **non-commercial research purposes only**.
-  * **Underlying Content:** The dataset **does not grant any rights** to the copyrighted songs/videos linked by the URLs. Users are responsible for respecting the original copyrights.
-  * **Dataset Compilation & Annotations:** Permission is granted to use, copy, and modify the URL compilation and any original annotations for non-commercial research, provided attribution is given to the dataset creators ([Woohyun Cho/MIRLAB]) and the license terms are followed.
-  * **NO WARRANTY:** The dataset is provided "AS IS" without warranty. Links may be broken.
-  * **Liability:** The dataset creators are not liable for any issues arising from the use of the dataset or the linked content.
+This dataset is distributed under the **CC BY-NC 4.0 (Creative Commons Attribution-NonCommercial 4.0 International)** license (see the `LICENSE` file for full details). Key points include:
+
+* **Attribution (BY):** You must give appropriate credit to the original creators ([Woohyun Cho/MIRLAB]).
+* **NonCommercial (NC):** You may not use the dataset for commercial purposes.
+* **Underlying Content Ownership:** It is crucial to understand that **this dataset does not grant any rights to the copyrighted songs/videos** linked via YouTube URLs or the full lyric texts obtained from external sources. Users are solely responsible for ensuring their use of this content complies with applicable copyright laws and YouTube's Terms of Service.
+* **Dataset Compilation & Annotations:** Permission is granted to use, copy, and modify the URL compilation and any original annotations (such as timestamps, syllable counts, and IPA transcriptions) for non-commercial research, provided attribution is given to the dataset creators ([Woohyun Cho/MIRLAB]) and the license terms are followed. This metadata, compiled by our research, can be freely adapted for non-commercial purposes with proper acknowledgment.
+* **NO WARRANTY:** The dataset is provided "AS IS" without warranty. Links may become broken over time.
+* **Liability:** The dataset creators are not liable for any issues arising from the use of the dataset or the linked content.
 
 ## Citation