======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '141'
                                          'artist'  'Richard Cheese'
                                     'text_people'  ''
                                         'release'  'Lounge Against the Machine'
                                           'title'  'Closer'
                                           'quals'  "['q-bass-4', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '16'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'General Jazz'
                                             'bpm'  '93.7'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Lounge Against the Machine'
'TBPM' (BPM (beats per minute))                     '93.7'
'TCMP'                                              '0'
'TCON' (Content type, a.k.a. Genre)                 'General Jazz'
'TDRC' (Recording time)                             '2000-10-17'
'TDRL' (Release time)                               '2000-10-17'
'TDTG' (Tagging time)                               '2007-09-14 05:44:38'
'TIT2' (Title/songname/content description)         'Closer'
'TKEY' (Initial key)                                '7B'
'TLEN' (Length)                                     '141609'
'TPE1' (Lead performer(s)/Soloist(s))               'Richard Cheese'
'TRCK' (Track number/Position in set)               '4/16'
'TSOP' (Performer sort order)                       'Cheese, Richard'
'TXXX:MusicBrainz Album Artist'                     'Richard Cheese'
'TXXX:MusicBrainz Album Artist Id'                  '9bf79f68-c064-44a1-8c2c-5764f1d7c016'
'TXXX:MusicBrainz Album Artist Sortname'            'Cheese, Richard'
'TXXX:MusicBrainz Album Id'                         '4fecbf14-179d-41fb-9a39-7eb44a4c4634'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '9bf79f68-c064-44a1-8c2c-5764f1d7c016'
'TXXX:MusicBrainz Non-Album'                        '0'
'TXXX:MusicIP PUID'                                 'abc5e99e-4746-e316-9638-e392e7ca7d27'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9d638d4e-2309-4be7-abca-feb4f4ba70ff')

========================== row from database ==========================
                                              'id'  1538851
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Richard Cheese/Closer.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  141
                                           'genre'  General Jazz
                                        'filesize'  2267169
                                           'mtime'  1662800495
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] General Jazz
                                      'tag_artist'  Richard Cheese
                                     'tag_release'  Lounge Against the Machine
                                       'tag_title'  Closer
                                             'bpm'  93.7
                                    'search_title'  'closer':1
                                   'search_artist'  'cheese':2 'richard':1
                                  'search_release'  'against':2 'lounge':1 'machine':4 'the':3
                                     'search_rest'  '9amusing':2,3 'general':4 'jazz':5 'prev':6 'prevset':1 'set':7
                                    'search_combo'  '9amusing':9,10 'against':5C 'cheese':3B 'closer':1A 'general':11 'jazz':12 'lounge':4C 'machine':7C 'prev':13 'prevset':8 'richard':2B 'set':14 'the':6C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['q-bass-4', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800494.83464  (2022-09-10 11:01:34)
                             'size'  2267169