======================== unified (from filesystem) ========================
                                         'bitrate'  '256.006'
                                        'duration'  '319'
                                          'artist'  'Biosphere'
                                     'text_people'  ''
                                         'release'  'Dropsonde'
                                           'title'  'From a Solid to a Liquid'
                                           'quals'  "['q-piano-1', 'q-bass-1', 'q-vocals-1', 'q-drums-1', 'q-other-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'im-calmer'
                                             'bpm'  '127.0'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'album'                                             'Dropsonde'
'artist'                                            'Biosphere'
'bpm'                                               '127.0'
'date'                                              '2006'
'genre'                                             'im-calmer'
'key'                                               '3A'
'q-bass'                                            '1'
'q-drums'                                           '1'
'q-other'                                           '4'
'q-piano'                                           '1'
'q-vocals'                                          '1'
'replaygain_track_gain'                             '+2.23 dB'
'replaygain_track_peak'                             '0.464122'
'title'                                             'From a Solid to a Liquid'
'tracknumber'                                       '05'

========================== row from database ==========================
                                              'id'  1537193
                                            'path'  /data/Music/Other/F3/Biosphere/2006 - Dropsonde/05 From a Solid to a Liquid.ogg
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  319
                                           'genre'  im-calmer
                                        'filesize'  8574364
                                           'mtime'  1662800186
                                   'redo_metaread'  0
                                        'rest_str'   F3 2006 05 im calmer
                                      'tag_artist'  Biosphere
                                     'tag_release'  Dropsonde
                                       'tag_title'  From a Solid to a Liquid
                                             'bpm'  127.0
                                    'search_title'  'a':2 'from':1 'liquid':5 'solid':3 'to':4
                                   'search_artist'  'biosphere':1
                                  'search_release'  'dropsonde':1
                                     'search_rest'  '2006':2 'calmer':4 'f3':1 'im':3
                                    'search_combo'  '2006':9 'a':2A 'biosphere':6B 'calmer':11 'dropsonde':7C 'f3':8 'from':1A 'im':10 'liquid':5A 'solid':3A 'to':4A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['q-bass-1', 'q-other-4', 'q-drums-1', 'q-piano-1', 'q-vocals-1']
                                      'lastfmtags'  []
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800185.7046196  (2022-09-10 10:56:25)
                             'size'  8574364