Handy Music Player

The main functionalities of this application is as below:
- Play songs in your Library (not those streamed or downloaded from Apple Music).
- Adjust the pitch of a track.
- Adjust the playback speed of a track.
- Set a loop on a track.
- Search track information in customizable formats in the web browser.
- Save a note for a track.
- Reverse the playback.
* This application uses media items(songs) in your music Library, except for those downloaded from Apple Music. It is not allowed to create, delete, or modify such items and their metadata.
* This application stores its own data sets(pitch, playback speed, loops, note, etc.) under the "persistent ID" of a relevant media item. If you update the metadata of the media item through iTunes, its persistent ID is automatically updated. This also applies when you delete a media item and add it again. In such cases, the application will fail to retrieve the media item's data set by its persistent ID, and will attempt to identify the item by its title, album artist, and album title.