This is The MMORPG, Black Desert.
We have made updates to the game on 01/20
If you are accessing the game right now, you need restart for the changes to be applied.
Please refer below for the exact details regarding this update.
● Deleted "Zoom In" button in the Music Album composing screen to fix issues where previous composed music would disappear and first note on the music list would be mixed in to the sound when setting options as Full Screen by pressing the "Zoom In" button while composing a Music Album.
We hope that you are enjoying your adventures in Black Desert.
Turkey&MENA Operation Team