* skip paris songs without metadata

ruby/lib/jam_ruby/jam_track_importer.rb

@@ -2960,6 +2960,9 @@ module JamRuby
 
         JamTrack.where(licensor_id: licensor.id).each do |jam_track|
 
+          if @paris_metadata[jam_track.vendor_id].nil?
+            next
+          end
           puts "RESYNCING JAMTRACK #{jam_track.id}"
           JamTrackTrack.where(jam_track_id: jam_track.id).order(:position).each do |track|
             puts "BEFORE TRACK #{track.instrument_id} #{track.part}"