======================== unified (from filesystem) ========================
                                         'bitrate'  '191.805'
                                        'duration'  '154'
                                          'artist'  'Tom Waits'
                                     'text_people'  ''
                                         'release'  'Big Time'
                                           'title'  'Underground'
                                           'quals'  ("['Q-JZFKS-2', 'Q-HAP-2', 'Q-LOCALNESS-2', 'Q-UNU-2', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']"
                                     'discogstags'  ("['rock', 'stage & screen', 'blues rock', 'lo-fi', 'avantgarde', "
 "'experimental']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '18'
                                            'date'  '1988'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '89'
                                             'key'  '6B'
                                        'acoustid'  'a07374ae-3ec6-4fca-a99b-062f63e2a14c'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Big Time'
'TBPM' (BPM (beats per minute))                     '89'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDOR' (Original release time)                      '1988'
'TDRC' (Recording time)                             '1988'
'TIT2' (Title/songname/content description)         'Underground'
'TKEY' (Initial key)                                '6B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Tom Waits'
'TPE2' (Band/orchestra/accompaniment)               'Tom Waits'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Island'
'TRCK' (Track number/Position in set)               '3/18'
'TSO2'                                              'Waits, Tom'
'TSOP' (Performer sort order)                       'Waits, Tom'
'TXXX:Acoustid Id'                                  'a07374ae-3ec6-4fca-a99b-062f63e2a14c'
'TXXX:Artists'                                      'Tom Waits'
'TXXX:BARCODE'                                      '075679098726'
'TXXX:CATALOGNUMBER'                                '90987-2'
'TXXX:MusicBrainz Album Artist Id'                  'c3aeb863-7b26-4388-94e8-5a240f2be21b'
'TXXX:MusicBrainz Album Id'                         'ced387a2-2bd8-4122-a8f3-92337596654a'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/live'
'TXXX:MusicBrainz Artist Id'                        'c3aeb863-7b26-4388-94e8-5a240f2be21b'
'TXXX:MusicBrainz Release Group Id'                 '49532907-57ee-3256-9940-bcb7ebb17def'
'TXXX:MusicBrainz Release Track Id'                 'fbef2f48-1ed1-352f-a006-f516bf6c44e6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'stage & screen', 'blues rock', 'lo-fi', 'avantgarde', 'experimental']
'TXXX:lastfmtags'                                   ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
'TXXX:originalyear'                                 '1988'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.24 dB'
'TXXX:replaygain_track_peak'                        '0.967613'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'50b5b621-6815-4ddd-96ee-92b21c71a665')

========================== row from database ==========================
                                              'id'  1367574
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Tom Waits/1988 - Big Time/MBZ;#Tom Waits;#Big Time;#03;#Underground.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  154
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  3741824
                                           'mtime'  1639508247
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos 1988 MBZ;#Tom Waits;#Big Time;#03;#Underground ifs songwriter eos
                                      'tag_artist'  Tom Waits
                                     'tag_release'  Big Time
                                       'tag_title'  Underground
                                             'bpm'  89.0
                                    'search_title'  'underground':1
                                   'search_artist'  'tom':1 'waits':2
                                  'search_release'  'big':1 'time':2
                                     'search_rest'  '00singer':1 '00songwriter':4 '03':15,18 '1988':5 'big':11,13 'eos':3 'ifs':20 'mbz':6,8 'songwriter':2 'time':14,17 'tom':7,9 'underground':16,19 'waits':10,12
                                    'search_combo'  '00singer':6 '00songwriter':9 '03':20,23 '1988':10 'big':4C,16,18 'eos':8 'ifs':25 'mbz':11,13 'songwriter':7 'time':5C,19,22 'tom':2B,12,14 'underground':1A,21,24 'waits':3B,15,17
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
                                        'tag_date'  1988
                                     'discogstags'  ['rock', 'stage & screen', 'blues rock', 'lo-fi', 'avantgarde', 'experimental']

============================== file details ==============================
                                           'mtime'  1639508247.0773659  (2021-12-14 19:57:27)
                             'size'  3741824