======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '266'
                                          'artist'  'Rammstein'
                                     'text_people'  ''
                                         'release'  'Das Modell'
                                           'title'  'Alter Mann (special version)'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', 'q-busy-4', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial metal', 'german', 'industrial', 'metal', 'rock']"
                                     'discogstags'  "['electronic', 'industrial']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '3'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '85.1'
                                             'key'  '10A'
                                        'acoustid'  '6e0e1a79-1187-411a-bed1-218d246fa5a4'
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Das Modell'
'TBPM' (BPM (beats per minute))                     '85.1'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDOR' (Original release time)                      '1997'
'TDRC' (Recording time)                             '1997-11-23'
'TIT2' (Title/songname/content description)         'Alter Mann (special version)'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'Enhanced CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Rammstein'
'TPE2' (Band/orchestra/accompaniment)               'Rammstein'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Motor Music'
'TRCK' (Track number/Position in set)               '3/3'
'TSO2'                                              'Rammstein'
'TSOP' (Performer sort order)                       'Rammstein'
'TSRC' (ISRC (international standard recording code))  'DED579704050'
'TXXX:ASIN'                                         'B000005KCV'
'TXXX:Acoustid Id'                                  '6e0e1a79-1187-411a-bed1-218d246fa5a4'
'TXXX:BARCODE'                                      '731456902920'
'TXXX:CATALOGNUMBER'                                '569 029-2'
'TXXX:MusicBrainz Album Artist Id'                  'b2d122f9-eadb-4930-a196-8f221eeb0c66'
'TXXX:MusicBrainz Album Id'                         '495a5443-2519-49ba-b1f6-ea791ea7a1ef'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'single'
'TXXX:MusicBrainz Artist Id'                        'b2d122f9-eadb-4930-a196-8f221eeb0c66'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'industrial']
'TXXX:lastfmtags'                                   ['industrial metal', 'german', 'industrial', 'metal', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.27 dB'
'TXXX:replaygain_track_peak'                        '0.459506'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'79aa7dc1-64d2-4199-9c55-345b47883440')

========================== row from database ==========================
                                              'id'  1335150
                                            'path'  /data/Music/Bulk/00poprockelectronic/Rammstein/Das Model (single)/Rammstein - Alter Mann - 03.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  266
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  4265593
                                           'mtime'  1620296955
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic (single) 03 eid ebm or industrial or darkwave
                                      'tag_artist'  Rammstein
                                     'tag_release'  Das Modell
                                       'tag_title'  Alter Mann (special version)
                                             'bpm'  85.1
                                    'search_title'  'alter':1 'mann':2 'special':3,4 'version':5,6
                                   'search_artist'  'rammstein':1
                                  'search_release'  'das':1 'modell':2
                                     'search_rest'  '00poprockelectronic':1 'darkwave':8 'ebm':5 'eid':4 'industrial':7 'or':6 'single':2,3
                                    'search_combo'  '00poprockelectronic':10 'alter':1A 'darkwave':17 'das':8C 'ebm':14 'eid':13 'industrial':16 'mann':2A 'modell':9C 'or':15 'rammstein':7B 'single':11,12 'special':3A,4A 'version':5A,6A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-1', 'q-bass-2', 'q-grit-4']
                                      'lastfmtags'  ['industrial metal', 'german', 'industrial', 'metal', 'rock']
                                        'tag_date'  1997
                                     'discogstags'  ['electronic', 'industrial']

============================== file details ==============================
                                           'mtime'  1620296954.6080787  (2021-05-06 12:29:14)
                             'size'  4265593