See http://test.musicbrainz.org/artist/797f10f9-7381-4210-9e0b-626db81c4c38/edit or http://test.musicbrainz.org/label/f8f36bcb-3bb8-4d0e-86da-4a2767f6f74b/edit

There's plenty of space (65%?) to the right of the text fields on these forms. 21 chars is rather short for these fields, without any apparent reason for the fields being so narrow.