So that thou shalt not lose thy metadata to the cloud upon uploading thy music to thine storage and delivery platform, thou shall createth a Excel or Numbers spreadsheet wherein thou shall store and update thy metadata, song by song, in one, centralised place.

This will alloweth you to centralise thy metadata for storage, entry into thy MP3s and cross-referencing after you uploadith your songs to other platforms.

Herewith is a basic template to get thou started.