======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '258'
                                          'artist'  'The Sisters of Mercy'
                                     'text_people'  ''
                                         'release'  'Body Electric'
                                           'title'  'Body Electric'
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                                      'lastfmtags'  "['80s', 'gothic rock', 'post punk', 'gothic', 'goth']"
                                     'discogstags'  "['goth rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '2'
                                            'date'  '1982'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '157'
                                             'key'  '8A'
                                        'acoustid'  '63d7d4df-a365-4d6e-9d90-4790232ec0d1'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '157'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDOR' (Original release time)                      '1982'
'TDRC' (Recording time)                             '1982'
'TIT2' (Title/songname/content description)         'Body Electric'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 '7" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'The Sisters of Mercy'
'TPE2' (Band/orchestra/accompaniment)               'The Sisters of Mercy'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'CNT'
'TRCK' (Track number/Position in set)               '1/2'
'TSO2'                                              'Sisters of Mercy, The'
'TSOP' (Performer sort order)                       'Sisters of Mercy, The'
'TXXX:Acoustid Id'                                  '63d7d4df-a365-4d6e-9d90-4790232ec0d1'
'TXXX:Artists'                                      'The Sisters of Mercy'
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'TXXX:MusicBrainz Album Id'                         'fe592a20-f833-40e1-8361-4c2062cd13ec'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'single'
'TXXX:MusicBrainz Artist Id'                        '553d8166-27b0-49fe-b8e4-89a984e2c375'
'TXXX:MusicBrainz Release Group Id'                 '478da8f6-7d79-4dd7-9e66-9297ade219e0'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['goth rock', 'rock']
'TXXX:lastfmtags'                                   ['80s', 'gothic rock', 'post punk', 'gothic', 'goth']
'TXXX:originalyear'                                 '1982'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.30 dB'
'TXXX:replaygain_track_peak'                        '0.739984'
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========================== row from database ==========================
                                              'id'  1472110
                                            'path'  /data/Music/Bulk/00poprockelectronic/Sisters of Mercy/Body electric.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  258
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  4141419
                                           'mtime'  1620572094
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic electric electronic we new wave or post punk
                                      'tag_artist'  The Sisters of Mercy
                                     'tag_release'  Body Electric
                                       'tag_title'  Body Electric
                                             'bpm'  157.0
                                    'search_title'  'body':1 'electric':2
                                   'search_artist'  'mercy':4 'of':3 'sisters':2 'the':1
                                  'search_release'  'body':1 'electric':2
                                     'search_rest'  '00poprockelectronic':1 'electric':2 'electronic':3 'new':5 'or':7 'post':8 'punk':9 'wave':6 'we':4
                                    'search_combo'  '00poprockelectronic':9 'body':1A,7C 'electric':2A,8C,10 'electronic':11 'mercy':6B 'new':13 'of':5B 'or':15 'post':16 'punk':17 'sisters':4B 'the':3B 'wave':14 'we':12
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'gothic rock', 'post punk', 'gothic', 'goth']
                                        'tag_date'  1982
                                     'discogstags'  ['goth rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620572093.9774828  (2021-05-09 16:54:53)
                             'size'  4141419