jam.diff

diff --git a/lib.go b/lib.go
index 37ea63c..5bd64da 100644
--- a/lib.go
+++ b/lib.go
@@ -53,6 +53,9 @@ func refreshLibrary() {
 		lib, err := tx.CreateBucketIfNotExists([]byte("Library"))
 		checkErr(err)
 		for _, t := range tracks {
+			if t.Artist == "" {
+				t.Artist = "Unknown Artist"
+			}
 			artist, err := lib.CreateBucketIfNotExists([]byte(t.Artist))
 			checkErr(err)
 			if t.Album == "" {