======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '266'
                                          'artist'  'Evanescence'
                                     'text_people'  ''
                                         'release'  'Origin'
                                           'title'  'My Immortal'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-1', 'q-vocals-4', 'q-mixbeat-1', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['gothic', 'gothic rock', 'female vocalists', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'goth rock', 'nu metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '13'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'eid-goth or gothrock-gothrock'
                                             'bpm'  '147'
                                             'key'  '11B'
                                        'acoustid'  'cfe0f653-a0e3-45ee-87a9-4938953b0ebb'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Origin'
'TBPM' (BPM (beats per minute))                     '147'
'TCON' (Content type, a.k.a. Genre)                 'eid-goth or gothrock-gothrock'
'TDOR' (Original release time)                      '2000'
'TIT2' (Title/songname/content description)         'My Immortal'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Evanescence'
'TPE2' (Band/orchestra/accompaniment)               'Evanescence'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4/13'
'TSO2'                                              'Evanescence'
'TSOP' (Performer sort order)                       'Evanescence'
'TXXX:Acoustid Id'                                  'cfe0f653-a0e3-45ee-87a9-4938953b0ebb'
'TXXX:Artists'                                      'Evanescence'
'TXXX:MusicBrainz Album Artist Id'                  'f4a31f0a-51dd-4fa7-986d-3095c40c5ed9'
'TXXX:MusicBrainz Album Id'                         '5518dcfd-bcc5-422e-9f85-69d771cd2f5a'
'TXXX:MusicBrainz Album Status'                     'bootleg'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'f4a31f0a-51dd-4fa7-986d-3095c40c5ed9'
'TXXX:MusicBrainz Release Group Id'                 'eab92048-3e05-3e0f-bc16-0780f5481b83'
'TXXX:MusicBrainz Release Track Id'                 '8a611faa-887e-3de6-b901-d54bb01157b8'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'goth rock', 'nu metal']
'TXXX:lastfmtags'                                   ['gothic', 'gothic rock', 'female vocalists', 'rock']
'TXXX:originalyear'                                 '2000'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.54 dB'
'TXXX:replaygain_track_peak'                        '0.418319'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'075d0cff-8efa-4ed4-84ce-985129ee940c')

========================== row from database ==========================
                                              'id'  1390562
                                            'path'  /data/Music/Bulk/00dwimp/00ebm-industrial-darkwave-goth/Evanescence/Origin/MBZ;#Evanescence;#Origin;#04;#My Immortal.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  266
                                           'genre'  eid-goth or gothrock-gothrock
                                        'filesize'  10718177
                                           'mtime'  1620300602
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00ebm industrial darkwave goth MBZ;#Evanescence;#Origin;#04;#My eid goth gothrock gothrock
                                      'tag_artist'  Evanescence
                                     'tag_release'  Origin
                                       'tag_title'  My Immortal
                                             'bpm'  147.0
                                    'search_title'  'immortal':2 'my':1
                                   'search_artist'  'evanescence':1
                                  'search_release'  'origin':1
                                     'search_rest'  '00dwimp':1 '00ebm':2 '04':9,14 'darkwave':4 'eid':16 'evanescence':7,12 'goth':5 'gothrock':17 'industrial':3 'mbz':6,11 'my':10,15 'origin':8,13
                                    'search_combo'  '00dwimp':5 '00ebm':6 '04':13,18 'darkwave':8 'eid':20 'evanescence':3B,11,16 'goth':9 'gothrock':21 'immortal':2A 'industrial':7 'mbz':10,15 'my':1A,14,19 'origin':4C,12,17
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'Q-PIANO-3', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-1', 'q-bass-1', 'q-grit-4']
                                      'lastfmtags'  ['gothic', 'gothic rock', 'female vocalists', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  ['rock', 'alternative rock', 'goth rock', 'nu metal']

============================== file details ==============================
                                           'mtime'  1620300602.0057676  (2021-05-06 13:30:02)
                             'size'  10718177