======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '376'
                                          'artist'  'Jon Hopkins'
                                     'text_people'  ''
                                         'release'  'Opalescent'
                                           'title'  'Lost In Thought'
                                           'quals'  "['q-bass-4', 'q-drums-4', 'q-other-3', 'q-piano-2', 'q-vocals-1']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'im-beats'
                                             'bpm'  '100.1'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Opalescent'
'TBPM' (BPM (beats per minute))                     '100.1'
'TCON' (Content type, a.k.a. Genre)                 'im-beats'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Lost In Thought'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jon Hopkins'
'TRCK' (Track number/Position in set)               '5'
'TXXX:MP3GAIN_MINMAX'                               '057,210'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.26 dB'
'TXXX:replaygain_track_peak'                        '0.972800'

========================== row from database ==========================
                                              'id'  1537165
                                            'path'  /data/Music/Other/F3/Jon Hopkins/05 - Lost In Thought.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  376
                                           'genre'  im-beats
                                        'filesize'  9042223
                                           'mtime'  1662800120
                                   'redo_metaread'  0
                                        'rest_str'   F3 05 im beats
                                      'tag_artist'  Jon Hopkins
                                     'tag_release'  Opalescent
                                       'tag_title'  Lost In Thought
                                             'bpm'  100.1
                                    'search_title'  'in':2 'lost':1 'thought':3
                                   'search_artist'  'hopkins':2 'jon':1
                                  'search_release'  'opalescent':1
                                     'search_rest'  'beats':3 'f3':1 'im':2
                                    'search_combo'  'beats':9 'f3':7 'hopkins':5B 'im':8 'in':2A 'jon':4B 'lost':1A 'opalescent':6C 'thought':3A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['q-bass-4', 'q-drums-4', 'q-other-3', 'q-piano-2', 'q-vocals-1']
                                      'lastfmtags'  []
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800120.4427273  (2022-09-10 10:55:20)
                             'size'  9042223