How to recover ALL my musics and photos after unmounting SD card?

I accidentally pressed 'Unmount SD Card' without knowing what is it about. And I lost almost all my photos and musics from the SD card. How can I recover everything as soon as possible? I am really sad because I love listening to music and it will be such a hassle to download the songs back.

Should now show Mount.
Also reboot
As long as nothing unsaved or being written they are there.
And it's formatted as portable, external storage?

Sounds like so many others with 'cant afford to lose, but am not backing up and keeping copies on cloud storage. Set up (Google Drive) to automatically upload changes.

Originally Posted by AC Question

I accidentally pressed 'Unmount SD Card' without knowing what is it about. And I lost almost all my photos and musics from the SD card. How can I recover everything as soon as possible? I am really sad because I love listening to music and it will be such a hassle to download the songs back.

Just choose remount SD card. Unmounting doesn't delete data on your card