The steps to unsubscribe from this music software are as follows:

1. Open the "Mobile Online Business Hall" app and click "My" in the lower left corner.

2. In the pop-up window, click "More".

3. In the pop-up window, find "Business Processed" and click to enter.

4. In the opened business interface, select the "business" that needs to be canceled and click on the detailed information to enter.

5. Click the "Unsubscribe Business" option below.

6. Click "OK" in the jump confirmation interface to unsubscribe from the service.