======================== unified (from filesystem) ========================
                                         'bitrate'  '242.171'
                                        'duration'  '267'
                                          'artist'  'Kalmah'
                                     'text_people'  ''
                                         'release'  'The Black Waltz'
                                           'title'  'Bitter Metallic Side'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['power metal', 'melodic death metal', 'death metal', 'metal', 'finnish']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '11'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'eid-metal-death;eid-metal-melodic'
                                             'bpm'  '133.2'
                                             'key'  '7A'
                                        'acoustid'  'a44968e4-b8a3-4354-9d3c-808aeada8fa3'
rest: ''

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

'COMM:ID3v1 Comment:eng'                            'QTXMp3!'
'TALB' (Album/Movie/Show title)                     'The Black Waltz'
'TBPM' (BPM (beats per minute))                     '133.2'
'TCON' (Content type, a.k.a. Genre)                 ['eid-metal-death', 'eid-metal-melodic']
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-03-06'
'TIT2' (Title/songname/content description)         'Bitter Metallic Side'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kalmah'
'TPE2' (Band/orchestra/accompaniment)               'Kalmah'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '2/11'
'TSO2'                                              'Kalmah'
'TSOP' (Performer sort order)                       'Kalmah'
'TSRC' (ISRC (international standard recording code))  'FISFS0500420'
'TXXX:Acoustid Id'                                  'a44968e4-b8a3-4354-9d3c-808aeada8fa3'
'TXXX:MusicBrainz Album Artist Id'                  '8d5291bc-e960-428a-9004-b5ab9c171dd2'
'TXXX:MusicBrainz Album Id'                         '287346cc-d4a7-37e9-bd4c-0783dfc381cc'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '8d5291bc-e960-428a-9004-b5ab9c171dd2'
'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'                                   ['power metal', 'melodic death metal', 'death metal', 'metal', 'finnish']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.43 dB'
'TXXX:replaygain_track_peak'                        '0.331590'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'0210c01a-3258-42de-ad55-fd04788d6d53')

========================== row from database ==========================
                                              'id'  1401956
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Kalmah/Kalmah - The Black Waltz/Kalmah - 02 - Bitter Metallic Side.mp3
                                         'working'  None
                                         'bitrate'  242
                                    'duration_sec'  267
                                           'genre'  eid-metal-death;eid-metal-melodic
                                        'filesize'  8111730
                                           'mtime'  1620302006
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 02 eid metal death;eid metal melodic
                                      'tag_artist'  Kalmah
                                     'tag_release'  The Black Waltz
                                       'tag_title'  Bitter Metallic Side
                                             'bpm'  133.2
                                    'search_title'  'bitter':1 'metallic':2 'side':3
                                   'search_artist'  'kalmah':1
                                  'search_release'  'black':2 'the':1 'waltz':3
                                     'search_rest'  '00dwimp':1 '00metal':2 'death':5,7 'eid':3,6,8 'melodic':9 'metal':4
                                    'search_combo'  '00dwimp':8 '00metal':9 'bitter':1A 'black':6C 'death':12,14 'eid':10,13,15 'kalmah':4B 'melodic':16 'metal':11 'metallic':2A 'side':3A 'the':5C 'waltz':7C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  7A
                                           '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-3', 'q-grit-4']
                                      'lastfmtags'  ['power metal', 'melodic death metal', 'death metal', 'metal', 'finnish']
                                        'tag_date'  2006
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302005.605975  (2021-05-06 13:53:25)
                             'size'  8111730