======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '213'
                                          'artist'  'Lazlo Bane'
                                     'text_people'  'AC/DC'
                                         'release'  'Guilty Pleasures'
                                           'title'  'Highway to Hell'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'indie', 'soundtrack', 'scrubs', 'rock', 'alternative']"
                                     'discogstags'  "['alternative rock', 'pop rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  '20'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'set-cover or covered-styled;set-cover or covered'
                                             'bpm'  '114.6'
                                             'key'  '11B'
                                        'acoustid'  'c3215ffd-6002-4789-997f-47561e95ea4a'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Guilty Pleasures'
'TBPM' (BPM (beats per minute))                     '114.6'
'TCOM' (Composer)                                   'AC/DC'
'TCON' (Content type, a.k.a. Genre)                 ['set-cover or covered-styled', 'set-cover or covered']
'TDOR' (Original release time)                      '2007'
'TDRC' (Recording time)                             '2007-07-11'
'TIT2' (Title/songname/content description)         'Highway to Hell'
'TKEY' (Initial key)                                '11B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Lazlo Bane'
'TPE2' (Band/orchestra/accompaniment)               'Lazlo Bane'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '20/20'
'TSO2'                                              'Lazlo Bane'
'TSOP' (Performer sort order)                       'Lazlo Bane'
'TXXX:ASIN'                                         'B00104K1K4'
'TXXX:Acoustid Id'                                  'c3215ffd-6002-4789-997f-47561e95ea4a'
'TXXX:MusicBrainz Album Artist Id'                  '63f38f77-9aae-4e1b-8947-aca325b7759f'
'TXXX:MusicBrainz Album Id'                         '61dc89b2-3060-4725-ad97-d6045289e6ed'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '63f38f77-9aae-4e1b-8947-aca325b7759f'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['alternative rock', 'pop rock', 'rock']
'TXXX:lastfmtags'                                   ['alternative rock', 'indie', 'soundtrack', 'scrubs', 'rock', 'alternative']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.89 dB'
'TXXX:replaygain_track_peak'                        '0.383191'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'0b77466b-0fe2-4d3d-a536-756fde19f28f')

========================== row from database ==========================
                                              'id'  1355667
                                            'path'  /data/Music/Bulk/00spent/Lazlo Bane - Guilty Pleasures 2007/20 - Highway to Hell.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  213
                                           'genre'  set-cover or covered-styled;set-cover or covered
                                        'filesize'  7315744
                                           'mtime'  1620350674
                                   'redo_metaread'  0
                                        'rest_str'   00spent 2007 20 set cover or covered styled;set cover or covered
                                      'tag_artist'  Lazlo Bane
                                     'tag_release'  Guilty Pleasures
                                       'tag_title'  Highway to Hell
                                             'bpm'  114.6
                                    'search_title'  'hell':3 'highway':1 'to':2
                                   'search_artist'  'bane':2 'lazlo':1
                                  'search_release'  'guilty':1 'pleasures':2
                                     'search_rest'  '00spent':1 '20':3 '2007':2 'cover':5 'covered':7 'or':6 'set':4,9,11 'styled':8,10
                                    'search_combo'  '00spent':8 '20':10 '2007':9 'bane':5B 'cover':12 'covered':14 'guilty':6C 'hell':3A 'highway':1A 'lazlo':4B 'or':13 'pleasures':7C 'set':11,16,18 'styled':15,17 'to':2A
                                    'tag_tracknum'  20
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'indie', 'soundtrack', 'scrubs', 'rock', 'alternative']
                                        'tag_date'  2007
                                     'discogstags'  ['alternative rock', 'pop rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620350673.9404438  (2021-05-07 03:24:33)
                             'size'  7315744