======================== unified (from filesystem) ========================
                                         'bitrate'  '185.513'
                                        'duration'  '125'
                                          'artist'  'Bob Peck'
                                     'text_people'  ''
                                         'release'  'RE/Search: Incredibly Strange Music, Volume 1'
                                           'title'  'Sweet 16'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'Q-PIANO-3', 'q-chart-1', 'q-drums-1', 'q-other-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spoken word', 'animals', 'over twenty minutes']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '13'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '123.1'
                                             'key'  '9A'
                                        'acoustid'  'a7de9136-89e8-43aa-8c74-6a12bc129a2c'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'RE/Search: Incredibly Strange Music, Volume 1'
'TBPM' (BPM (beats per minute))                     '123.1'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDOR' (Original release time)                      '1993'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Sweet 16'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Peck'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Caroline Records'
'TRCK' (Track number/Position in set)               '2/13'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Peck, Bob'
'TXXX:ASIN'                                         'B000000HX9'
'TXXX:Acoustid Id'                                  'a7de9136-89e8-43aa-8c74-6a12bc129a2c'
'TXXX:BARCODE'                                      '017046174626'
'TXXX:CATALOGNUMBER'                                'CAR 01746-2'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '9c5ce961-4eee-44e7-9236-2e5d778fec2e'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'c4e031d0-f828-46d3-bcbd-a7a93868e7ca'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['spoken word', 'animals', 'over twenty minutes']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.38 dB'
'TXXX:replaygain_track_peak'                        '0.578086'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'1b10f282-f939-4fa9-9705-05e0c9a72ba1')

========================== row from database ==========================
                                              'id'  1386483
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Scramblers - VA - Incredibly Strange Music Vol. 1 (Caroline,1993) [199kvbr]/02_-_bob_peck_-_sweet_16.mp3
                                         'working'  None
                                         'bitrate'  185
                                    'duration_sec'  125
                                           'genre'  electronic-unsorted
                                        'filesize'  2902023
                                           'mtime'  1622658984
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm The Scramblers VA Vol. (Caroline,1993) [199kvbr] 02_ _bob_peck_ _sweet_16 electronic unsorted
                                      'tag_artist'  Bob Peck
                                     'tag_release'  RE/Search: Incredibly Strange Music, Volume 1
                                       'tag_title'  Sweet 16
                                             'bpm'  123.1
                                    'search_title'  'sweet':1
                                   'search_artist'  'bob':1 'peck':2
                                  'search_release'  '1':9 'incredibly':4 'music':6,7 're':1 'research':3 'search':2 'strange':5 'volume':8
                                     'search_rest'  '02':12 '16':16 '1993':7,9 '199kvbr':10,11 'bob':13 'caroline':6,8 'electronic':17 'peck':14 'scramblers':2 'sweet':15 'the':1 'unsorted':18 'va':3 'vol':4,5
                                    'search_combo'  '02':24 '1':12C '16':28 '1993':19,21 '199kvbr':22,23 'bob':2B,25 'caroline':18,20 'electronic':29 'incredibly':7C 'music':9C,10C 'peck':3B,26 're':4C 'research':6C 'scramblers':14 'search':5C 'strange':8C 'sweet':1A,27 'the':13 'unsorted':30 'va':15 'vol':16,17 'volume':11C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['spoken word', 'animals', 'over twenty minutes']
                                        'tag_date'  1993
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1622658984.3730347  (2021-06-02 20:36:24)
                             'size'  2902023