======================== unified (from filesystem) ========================
                                         'bitrate'  '319.977'
                                        'duration'  '360'
                                          'artist'  'Bush'
                                     'text_people'  ''
                                         'release'  'Razorblade Suitcase'
                                           'title'  'Cold Contagious'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'grunge', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'grunge']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'rock-gr-grunge'
                                             'bpm'  '128.986'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Razorblade Suitcase'
'TBPM' (BPM (beats per minute))                     '128.986'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-grunge'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Cold Contagious'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bush'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'grunge']
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'alternative', 'grunge', 'rock']
'TXXX:original release date'                        ['1996', '1996']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+11.85 dB'
'TXXX:replaygain_track_peak'                        '0.106989'

========================== row from database ==========================
                                              'id'  1491755
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/bush - cold contagious.mp3
                                         'working'  None
                                         'bitrate'  319
                                    'duration_sec'  360
                                           'genre'  rock-gr-grunge
                                        'filesize'  14405954
                                           'mtime'  1636902829
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch bush cold contagious rock gr grunge
                                      'tag_artist'  Bush
                                     'tag_release'  Razorblade Suitcase
                                       'tag_title'  Cold Contagious
                                             'bpm'  128.986
                                    'search_title'  'cold':1 'contagious':2
                                   'search_artist'  'bush':1
                                  'search_release'  'razorblade':1 'suitcase':2
                                     'search_rest'  '00dutch':4 '00mid':1 'bush':5 'cold':6 'contagious':7 'europe':3 'gr':9 'grunge':10 'north':2 'rock':8
                                    'search_combo'  '00dutch':9 '00mid':6 'bush':3B,10 'cold':1A,11 'contagious':2A,12 'europe':8 'gr':14 'grunge':15 'north':7 'razorblade':4C 'rock':13 'suitcase':5C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'grunge', 'rock']
                                        'tag_date'  1996
                                     'discogstags'  ['rock', 'alternative rock', 'grunge']

============================== file details ==============================
                                           'mtime'  1636902829.0461237  (2021-11-14 16:13:49)
                             'size'  14405954