iCloud Drive or music creation (or both?) So I'm trying to clean my Macbook Pro in order to have more storage, but this whole iCloud Drive thing is very confusing. Out of my total 121GB, 47GB are iCloud Drive and 22GB are music creation.

My question is whether my music creation files, many of which are stored in iCloud, are taking up space twice? My music creation storage consists of 19GB of Logic Pro projects (7GB on disk) and 16GB of Audacity projects (at least I believe the Audacity projects register as music creation). Beyond the music creation files I don't really have many files on here, so I'm having a hard time understanding where 47GB of iCloud Drive files are coming from. Is some of that space being taken up by duplicates of my music creation files?
If you go to Sytem Preferences/iCloud you'll see an option button as shown below.



Click on the options button and you'll get a new pane. At the bottom of this pane is a checkbox to optimize Mac storage. See the figure below.



This option can effect the free space on your hard drive. read the description next to the checkbox to determine which setting you want.