======================== unified (from filesystem) ========================
                                         'bitrate'  '262.733'
                                        'duration'  '538'
                                          'artist'  'Bandulu'
                                     'text_people'  ''
                                         'release'  'Guidance'
                                           'title'  'Gravity Pull'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['dub techno', 'dub', 'techno', 'electronic', 'synthpop']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '10'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '132.878'
                                             'key'  '1A'
                                        'acoustid'  '482bbf99-2b7d-4fbb-9ec1-5cf36eb2608d'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Guidance'
'TBPM' (BPM (beats per minute))                     '132.878'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDOR' (Original release time)                      '1993'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Gravity Pull'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Bandulu'
'TPE2' (Band/orchestra/accompaniment)               'Bandulu'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Infonet'
'TRCK' (Track number/Position in set)               '6/10'
'TSO2'                                              'Bandulu'
'TSOP' (Performer sort order)                       'Bandulu'
'TXXX:ASIN'                                         'B014I36QYS'
'TXXX:Acoustid Id'                                  '482bbf99-2b7d-4fbb-9ec1-5cf36eb2608d'
'TXXX:BARCODE'                                      '5099747418525'
'TXXX:CATALOGNUMBER'                                'INFCD 3'
'TXXX:MusicBrainz Album Artist Id'                  '6b319887-ae0c-416d-9c01-fdf08f95683c'
'TXXX:MusicBrainz Album Id'                         '0dcde714-4511-35ff-ac5f-9f1ae3703450'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '6b319887-ae0c-416d-9c01-fdf08f95683c'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['dub techno', 'dub', 'techno', 'electronic', 'synthpop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.21 dB'
'TXXX:replaygain_track_peak'                        '0.865150'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'70febdf9-778d-4a9a-9918-08c63eafbae2')

========================== row from database ==========================
                                              'id'  1295029
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/Bandulu - Guidance [Infonet 003]/06 Bandulu - Gravity Pull.mp3
                                         'working'  None
                                         'bitrate'  262
                                    'duration_sec'  538
                                           'genre'  electronic-th-techno
                                        'filesize'  17684106
                                           'mtime'  1620563557
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats [Infonet 003] 06 electronic th techno
                                      'tag_artist'  Bandulu
                                     'tag_release'  Guidance
                                       'tag_title'  Gravity Pull
                                             'bpm'  132.878
                                    'search_title'  'gravity':1 'pull':2
                                   'search_artist'  'bandulu':1
                                  'search_release'  'guidance':1
                                     'search_rest'  '003':8,9 '00poprockelectronic':1 '00techno':2 'beats':5 'electronic':10 'harder':4 'house':3 'infonet':6,7 'techno':12 'th':11
                                    'search_combo'  '003':12,13 '00poprockelectronic':5 '00techno':6 'bandulu':3B 'beats':9 'electronic':14 'gravity':1A 'guidance':4C 'harder':8 'house':7 'infonet':10,11 'pull':2A 'techno':16 'th':15
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dub techno', 'dub', 'techno', 'electronic', 'synthpop']
                                        'tag_date'  1993
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620563556.9598804  (2021-05-09 14:32:36)
                             'size'  17684106