======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '139'
                                          'artist'  'Carpathian Forest'
                                     'text_people'  ''
                                         'release'  'Bloodlust and Perversion'
                                           'title'  'Warhead'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['norwegian', 'true norwegian black metal', 'black metal', 'metal', "
 "'norwegian black metal']")
                                     'discogstags'  "['black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '13'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'eid-metal-black'
                                             'bpm'  '118.290'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Bloodlust and Perversion'
'TBPM' (BPM (beats per minute))                     '118.290'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-black'
'TDOR' (Original release time)                      '1992'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Warhead'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Carpathian Forest'
'TPE2' (Band/orchestra/accompaniment)               'Carpathian Forest'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '13/13'
'TSO2'                                              'Carpathian Forest'
'TSOP' (Performer sort order)                       'Carpathian Forest'
'TXXX:ASIN'                                         'B00000B5XS'
'TXXX:BARCODE'                                      '4006759746905'
'TXXX:CATALOGNUMBER'                                'nyx 01'
'TXXX:MusicBrainz Album Artist Id'                  '69fa5c49-12ec-4c86-a238-4e07cc6d1a7d'
'TXXX:MusicBrainz Album Id'                         '28c5c497-fb4e-46bb-a4a6-ee14c381756e'
'TXXX:MusicBrainz Album Release Country'            'NO'
'TXXX:MusicBrainz Album Status'                     'bootleg'
'TXXX:MusicBrainz Album Type'                       'ep'
'TXXX:MusicBrainz Artist Id'                        '69fa5c49-12ec-4c86-a238-4e07cc6d1a7d'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['black metal', 'rock']
'TXXX:lastfmtags'                                   ['norwegian',
 'true norwegian black metal',
 'black metal',
 'metal',
 'norwegian black metal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.40 dB'
'TXXX:replaygain_track_peak'                        '0.834036'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'33183977-e219-4ec8-ba4a-3575602c5379')

========================== row from database ==========================
                                              'id'  1398965
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Carpathian Forest/Bloodlust and Perversion/Carpathian_Forest_-_Bloodlust_and_Perversion_-_13_-_Warhead.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  139
                                           'genre'  eid-metal-black
                                        'filesize'  2235858
                                           'mtime'  1620301466
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Carpathian_Forest_ _Bloodlust_and_Perversion_ _13_ _Warhead eid metal black
                                      'tag_artist'  Carpathian Forest
                                     'tag_release'  Bloodlust and Perversion
                                       'tag_title'  Warhead
                                             'bpm'  118.29
                                    'search_title'  'warhead':1
                                   'search_artist'  'carpathian':1 'forest':2
                                  'search_release'  'and':2 'bloodlust':1 'perversion':3
                                     'search_rest'  '00dwimp':1 '00metal':2 '13':8 'and':6 'black':12 'bloodlust':5 'carpathian':3 'eid':10 'forest':4 'metal':11 'perversion':7 'warhead':9
                                    'search_combo'  '00dwimp':7 '00metal':8 '13':14 'and':5C,12 'black':18 'bloodlust':4C,11 'carpathian':2B,9 'eid':16 'forest':3B,10 'metal':17 'perversion':6C,13 'warhead':1A,15
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['norwegian', 'true norwegian black metal', 'black metal', 'metal', 'norwegian black metal']
                                        'tag_date'  1997
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620301465.6559231  (2021-05-06 13:44:25)
                             'size'  2235858