Not everything gets released, some sketches or passages may be kept on hard drives until such times as they can be developed into something more substantial. A lot may end up being deleted, if I think it is shite straight away then it doesn't get saved it just gets trashed. When I start recording the goal at the end is to release an album, but that may not always happen as music creation can take you off in many different tangents and away from what you originally wanted to convey. Sometimes it is not always that easy to get back on track.