You can use widi to convert MP3 to mid format.

Specific operation process:?

1. Open the file?

Start Widi 2.7 and execute the "File → Open" command in its main interface window. In the pop-up "Open" dialog box, select the audio format file that needs to be converted, and return to the main interface window to open the wavetable spectrum window of the audio format file. ?

2. Parameter adjustment?

Execute the "Options/Recognition Rate Settings" command in the main menu to open the parameter configuration dialog box, which mainly includes three tabs. Select "MIDI "Options" tab, set the main instrument in the drop-down list on the right side of "GM Voice (Instrument)", such as "Audio Grand Piano", then use "Key/Personality" to select the set tone, and set the beat in "Time" , click the "OK" button when finished. ?

3. Start conversion?

Click the left mouse button in the wavetable spectrum to define the left boundary of the conversion, click the right mouse button to define the right boundary of the conversion, and then execute the menu " Process → Start" command to convert the audio in the selected range to MIDI format. After the conversion is completed, a play bar will pop up automatically. At this time, you can click the "Play" button to enjoy the converted effect.