======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '140'
                                          'artist'  'Weezer'
                                     'text_people'  ''
                                         'release'  'Blue / Green / Red'
                                           'title'  'Knockdown Dragout'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'rock']"
                                     'discogstags'  "['alternative rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '10'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '138.417'
                                             'key'  '8B'
                                        'acoustid'  'cc368cd0-ffa8-4997-ba41-41c120e3948d'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Blue / Green / Red'
'TBPM' (BPM (beats per minute))                     '138.417'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009-11-17'
'TIT2' (Title/songname/content description)         'Knockdown Dragout'
'TKEY' (Initial key)                                '8B'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Weezer'
'TPE2' (Band/orchestra/accompaniment)               'Weezer'
'TPOS' (Part of a set)                              '2/3'
'TPUB' (Publisher)                                  'Geffen Records'
'TRCK' (Track number/Position in set)               '6/10'
'TSO2'                                              'Weezer'
'TSOP' (Performer sort order)                       'Weezer'
'TSRC' (ISRC (international standard recording code))  'USIR10110359'
'TSST' (Set subtitle)                               'Green'
'TXXX:Acoustid Id'                                  'cc368cd0-ffa8-4997-ba41-41c120e3948d'
'TXXX:BARCODE'                                      '602527287089'
'TXXX:Mp3gain_minmax'                               '070,186'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:MusicBrainz Album Artist Id'                  '6fe07aa5-fec0-4eca-a456-f29bff451b04'
'TXXX:MusicBrainz Album Id'                         '7357c213-3856-4767-b540-d6f0d77ef88f'
'TXXX:MusicBrainz Album Release Country'            'MX'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '6fe07aa5-fec0-4eca-a456-f29bff451b04'
'TXXX:Q-HAP'                                        '2'
'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', 'rock']
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'alternative', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.45 dB'
'TXXX:replaygain_track_peak'                        '0.550159'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'c222c222-c874-4889-b1b6-bcb3bd4ecc43')

========================== row from database ==========================
                                              'id'  1284612
                                            'path'  /data/Music/Bulk/00poprockelectronic/Weezer/The Green Album/Weezer - Knock Down Drag Out - 06.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  140
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  3371812
                                           'mtime'  1637330420
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic The Album Down Out 06 ifs songwriter indie rock
                                      'tag_artist'  Weezer
                                     'tag_release'  Blue / Green / Red
                                       'tag_title'  Knockdown Dragout
                                             'bpm'  138.417
                                    'search_title'  'dragout':2 'knockdown':1
                                   'search_artist'  'weezer':1
                                  'search_release'  'blue':1 'green':2 'red':3
                                     'search_rest'  '00poprockelectronic':1 'album':3 'down':4 'ifs':6 'indie':8 'out':5 'rock':9 'songwriter':7 'the':2
                                    'search_combo'  '00poprockelectronic':7 'album':9 'blue':4C 'down':10 'dragout':2A 'green':5C 'ifs':12 'indie':14 'knockdown':1A 'out':11 'red':6C 'rock':15 'songwriter':13 'the':8 'weezer':3B
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'rock']
                                        'tag_date'  2009
                                     'discogstags'  ['alternative rock', 'rock']

============================== file details ==============================
                                           'mtime'  1637330420.3964467  (2021-11-19 15:00:20)
                             'size'  3371812