======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '260'
                                          'artist'  'Brooklyn Bounce'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Hell is a Dancefloor'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'trance', 'techno', 'electronic', 'house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '17'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '139'
                                             'key'  '12A'
                                        'acoustid'  'a11fb0e2-4de6-4ffb-ae16-99eaee00af3f'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '139'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001-04-17'
'TIT2' (Title/songname/content description)         'Hell is a Dancefloor'
'TKEY' (Initial key)                                '12A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Brooklyn Bounce'
'TPE2' (Band/orchestra/accompaniment)               'Brooklyn Bounce'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Dance Division'
'TRCK' (Track number/Position in set)               '16/17'
'TSO2'                                              'Brooklyn Bounce'
'TSOP' (Performer sort order)                       'Brooklyn Bounce'
'TXXX:ASIN'                                         'B00005B6FR'
'TXXX:Acoustid Id'                                  'a11fb0e2-4de6-4ffb-ae16-99eaee00af3f'
'TXXX:Artists'                                      'Brooklyn Bounce'
'TXXX:BARCODE'                                      '5099750249727'
'TXXX:CATALOGNUMBER'                                'DAD 502497 2'
'TXXX:Mp3gain_minmax'                               '042,206'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['dance', 'trance', 'techno', 'electronic', 'house']
'TXXX:originalyear'                                 '2001'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.39 dB'
'TXXX:replaygain_track_peak'                        '0.520174'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'52f0d322-969e-457d-a66a-8562ceea92d3')

========================== row from database ==========================
                                              'id'  1406417
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Top 40/016 - Hell is a Dancefloor.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  260
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  4238885
                                           'mtime'  1621695902
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Top 40 016 electronic generic radio dance
                                      'tag_artist'  Brooklyn Bounce
                                     'tag_release'  None
                                       'tag_title'  Hell is a Dancefloor
                                             'bpm'  139.0
                                    'search_title'  'a':3 'dancefloor':4 'hell':1 'is':2
                                   'search_artist'  'bounce':2 'brooklyn':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '40':6 'dance':3 'electronic':7 'generic':2 'radio':8 'top':5 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':7 '40':12 'a':3A 'bounce':6B 'brooklyn':5B 'dance':9 'dancefloor':4A 'electronic':13 'generic':8 'hell':1A 'is':2A 'radio':14 'top':11 'trapbeat':10
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'trance', 'techno', 'electronic', 'house']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695901.6211467  (2021-05-22 17:05:01)
                             'size'  4238885