======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '110'
                                          'artist'  'Ensiferum'
                                     'text_people'  ('Petri Lindroos - Harsh Vocals/Guitar, Markus Toivonen - Guitar/Clean '
 'Vocals/Backing Vocals, Sami Hinkka - Bass/Clean Vocals/Backing Vocals, Janne '
 'Parviainen - Drums, Emmi Silvennoinen - Keyboard')
                                         'release'  'Ensiferum'
                                           'title'  'Intro'
                                           '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-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['melodic death metal', 'folk metal', 'viking metal', 'metal', 'finnish']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '12'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'eid-metal-folk'
                                             'bpm'  '125.0'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::spa'                                         ' '
'TALB' (Album/Movie/Show title)                     'Ensiferum'
'TBPM' (BPM (beats per minute))                     '125.0'
'TCOM' (Composer)                                   ('Petri Lindroos - Harsh Vocals/Guitar, Markus Toivonen - Guitar/Clean '
 'Vocals/Backing Vocals, Sami Hinkka - Bass/Clean Vocals/Backing Vocals, Janne '
 'Parviainen - Drums, Emmi Silvennoinen - Keyboard')
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-folk'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['flute', 'Johanna Vakkuri'], ['vocal', 'Johanna Vakkuri'], ['keyboard', 'Henri Sorvali'], ['zither', 'Marita Toivonen'], ['bass guitar', 'Jukka-Pekka Miettinen'], ['guest vocal', 'Johanna Vakkuri'], ['guest vocal', 'Antti Mikkonen'], ['guest vocal', 'Teemu Saari'], ['percussion', 'Oliver Fokin'], ['guitar', 'Markus Toivonen'], ['guitar', 'Jari Mäenpää'], ['guest zither', 'Marita Toivonen'], ['vocal', 'Jari Mäenpää'], ['membranophone', 'Oliver Fokin'], ['guest kantele', 'Marita Toivonen'], ['guest keyboard', 'Henri Sorvali'], ['guest flute', 'Johanna Vakkuri']])
'TIT2' (Title/songname/content description)         'Intro'
'TKEY' (Initial key)                                '9A'
'TLAN' (Language(s))                                'eng'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Ensiferum'
'TPE2' (Band/orchestra/accompaniment)               'Ensiferum'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Spinefarm Records'
'TRCK' (Track number/Position in set)               '1/12'
'TSO2'                                              'Ensiferum'
'TSOP' (Performer sort order)                       'Ensiferum'
'TXXX:ASIN'                                         'B00005R5KW'
'TXXX:BARCODE'                                      '6417871171229'
'TXXX:CATALOGNUMBER'                                'SPI112CD'
'TXXX:MusicBrainz Album Artist Id'                  '6e64cbfa-1a60-450e-81f4-c044c868ab24'
'TXXX:MusicBrainz Album Id'                         '6a09c076-9970-45f9-9410-d8b0d484d4e7'
'TXXX:MusicBrainz Album Release Country'            'FI'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '6e64cbfa-1a60-450e-81f4-c044c868ab24'
'TXXX:MusicIP PUID'                                 '0a160d43-f0b0-80f8-059b-324bfe35e25a'
'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'                                   ['melodic death metal', 'folk metal', 'viking metal', 'metal', 'finnish']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.87 dB'
'TXXX:replaygain_track_peak'                        '0.276062'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'aedcd848-af38-4b8e-a8e6-f62186c6e50b')

========================== row from database ==========================
                                              'id'  1397253
                                            'path'  /data/Music/Bulk/00dwimp/00metal/2001 - Ensiferum/01 - Intro.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  110
                                           'genre'  eid-metal-folk
                                        'filesize'  4789461
                                           'mtime'  1620301610
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 2001 01 eid metal folk
                                      'tag_artist'  Ensiferum
                                     'tag_release'  Ensiferum
                                       'tag_title'  Intro
                                             'bpm'  125.0
                                    'search_title'  'intro':1
                                   'search_artist'  'ensiferum':1
                                  'search_release'  'ensiferum':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '2001':3 'eid':4 'folk':6 'metal':5
                                    'search_combo'  '00dwimp':4 '00metal':5 '2001':6 'eid':7 'ensiferum':2B,3C 'folk':9 'intro':1A 'metal':8
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             '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-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['melodic death metal', 'folk metal', 'viking metal', 'metal', 'finnish']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620301609.9916906  (2021-05-06 13:46:49)
                             'size'  4789461