======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '251'
                                          'artist'  'Amon Amarth'
                                     'text_people'  ''
                                         'release'  'Once Sent From the Golden Hall'
                                           'title'  'Once Sent From the Golden Hall'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swedish', 'death metal', 'melodic death metal', 'viking metal', 'metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '8'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '126.9'
                                             'key'  '6A'
                                        'acoustid'  '030cd938-87fd-47f3-ae4e-bce0a87534c8'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Once Sent From the Golden Hall'
'TBPM' (BPM (beats per minute))                     '126.9'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1998-02-10'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Peter Tägtgren'], ['engineer', 'Peter Tägtgren'], ['guitar', 'Anders Hansson'], ['membranophone', 'Martin Lopez']])
'TIT2' (Title/songname/content description)         'Once Sent From the Golden Hall'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Amon Amarth'
'TPE2' (Band/orchestra/accompaniment)               'Amon Amarth'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Metal Blade Records'
'TRCK' (Track number/Position in set)               '8/8'
'TSO2'                                              'Amon Amarth'
'TSOP' (Performer sort order)                       'Amon Amarth'
'TXXX:ASIN'                                         'B000001C9Y'
'TXXX:Acoustid Id'                                  '030cd938-87fd-47f3-ae4e-bce0a87534c8'
'TXXX:BARCODE'                                      '0039841413328'
'TXXX:CATALOGNUMBER'                                '398414133CD'
'TXXX:MusicBrainz Album Artist Id'                  '5b687684-ad34-4a9f-b425-0e7aa81fbd38'
'TXXX:MusicBrainz Album Id'                         'bcc93d8b-7460-3e40-ab21-c5a9486db7bc'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5b687684-ad34-4a9f-b425-0e7aa81fbd38'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['swedish', 'death metal', 'melodic death metal', 'viking metal', 'metal']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.68 dB'
'TXXX:replaygain_track_peak'                        '0.396645'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'35165d41-f33d-4068-91bf-6fc1f7e0a36c')

========================== row from database ==========================
                                              'id'  1399248
                                            'path'  /data/Music/Bulk/00dwimp/00metal/00death/amon amarth - 1998 - once sent from the golden hall/08 - Once Sent from the Golden Hall.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  251
                                           'genre'  eid-metal-death
                                        'filesize'  6039469
                                           'mtime'  1620301820
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 00death amon amarth 1998 once sent from golden hall 08 from eid metal death
                                      'tag_artist'  Amon Amarth
                                     'tag_release'  Once Sent From the Golden Hall
                                       'tag_title'  Once Sent From the Golden Hall
                                             'bpm'  126.9
                                    'search_title'  'from':3 'golden':5 'hall':6 'once':1 'sent':2 'the':4
                                   'search_artist'  'amarth':2 'amon':1
                                  'search_release'  'from':3 'golden':5 'hall':6 'once':1 'sent':2 'the':4
                                     'search_rest'  '00death':3 '00dwimp':1 '00metal':2 '1998':6 'amarth':5 'amon':4 'death':14 'eid':12 'from':9 'golden':10 'hall':11 'metal':13 'once':7 'sent':8
                                    'search_combo'  '00death':17 '00dwimp':15 '00metal':16 '1998':20 'amarth':8B,19 'amon':7B,18 'death':28 'eid':26 'from':3A,11C,23 'golden':5A,13C,24 'hall':6A,14C,25 'metal':27 'once':1A,9C,21 'sent':2A,10C,22 'the':4A,12C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-other-3', 'Q-HAP-1', 'q-bass-2', 'q-grit-4']
                                      'lastfmtags'  ['swedish', 'death metal', 'melodic death metal', 'viking metal', 'metal']
                                        'tag_date'  1998
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620301820.0441468  (2021-05-06 13:50:20)
                             'size'  6039469