Mention backups in the main guide
@@ -182,6 +182,11 @@ here, including the directory and file naming scheme. See
Importing Your Library
----------------------
+The next step is to import your music files into the beets library database.
+Because this can involve moving files around, data loss is always a
+possibility, so now would be a good time to make sure you have a recent backup
+of all your music. We'll wait.
+
There are two good ways to bring your existing library into beets. You can
either: (a) quickly bring all your files with all their current metadata into
beets' database, or (b) use beets' highly-refined autotagger to find canonical
