======================== unified (from filesystem) ========================
                                         'bitrate'  '132.375'
                                        'duration'  '264'
                                          'artist'  'Tortoise'
                                     'text_people'  ''
                                         'release'  'Tortoise'
                                           'title'  'Tin Cans & Twine'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'post rock', 'instrumental rock', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic', 'rock', 'post rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '10'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'rock-post'
                                             'bpm'  '116.9'
                                             'key'  '10A'
                                        'acoustid'  'da3d8f45-4a75-4932-be70-ba22e5248b48'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Tortoise'
'TBPM' (BPM (beats per minute))                     '116.9'
'TCON' (Content type, a.k.a. Genre)                 'rock-post'
'TDOR' (Original release time)                      '1994'
'TDRC' (Recording time)                             '1994'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['mix', 'John McEntire'], ['mix', 'Bundy K. Brown'], ['', 'Douglas McCombs'], ['', 'John McEntire'], ['', 'Dan Bitney'], ['', 'Bundy K. Brown'], ['', 'John Herndon']])
'TIT2' (Title/songname/content description)         'Tin Cans & Twine'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Tortoise'
'TPE2' (Band/orchestra/accompaniment)               'Tortoise'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'City Slang'
'TRCK' (Track number/Position in set)               '5/10'
'TSO2'                                              'Tortoise'
'TSOP' (Performer sort order)                       'Tortoise'
'TXXX:ASIN'                                         'B000004B2I'
'TXXX:Acoustid Id'                                  'da3d8f45-4a75-4932-be70-ba22e5248b48'
'TXXX:BARCODE'                                      '0718750495020'
'TXXX:CATALOGNUMBER'                                '04950-2'
'TXXX:MusicBrainz Album Artist Id'                  'e0953daa-860f-4dc8-9f1a-b12587cdaf17'
'TXXX:MusicBrainz Album Id'                         'ee770740-9f45-3b90-a40d-1d93e74e73e1'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'e0953daa-860f-4dc8-9f1a-b12587cdaf17'
'TXXX:Q-HAP'                                        '3'
'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'                                  ['electronic', 'rock', 'post rock']
'TXXX:lastfmtags'                                   ['instrumental', 'post rock', 'instrumental rock', 'experimental', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.84 dB'
'TXXX:replaygain_track_peak'                        '0.919359'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9737fd4b-c73e-4caf-a466-ac149b6de857')

========================== row from database ==========================
                                              'id'  403465
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/1994 - Tortoise/05 - Tin Cans & Twine.mp3
                                         'working'  None
                                         'bitrate'  132
                                    'duration_sec'  264
                                           'genre'  rock-post
                                        'filesize'  4377434
                                           'mtime'  1621489556
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1994 05 rock post
                                      'tag_artist'  Tortoise
                                     'tag_release'  Tortoise
                                       'tag_title'  Tin Cans & Twine
                                             'bpm'  116.9
                                    'search_title'  'cans':2 'tin':1 'twine':3
                                   'search_artist'  'tortoise':1
                                  'search_release'  'tortoise':1
                                     'search_rest'  '1994':1 'post':3 'rock':2
                                    'search_combo'  '1994':6 'cans':2A 'post':8 'rock':7 'tin':1A 'tortoise':4B,5C 'twine':3A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  10A
                                           '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-3', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'post rock', 'instrumental rock', 'experimental', 'ambient']
                                        'tag_date'  1994
                                     'discogstags'  ['electronic', 'rock', 'post rock']

============================== file details ==============================
                                           'mtime'  1621489556.1216078  (2021-05-20 07:45:56)
                             'size'  4377434