======================== unified (from filesystem) ========================
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                                        'duration'  '222'
                                          'artist'  'St. Vincent'
                                     'text_people'  ''
                                         'release'  'St. Vincent'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '11'
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '123'
                                             'key'  '8A'
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rest: ''

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

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'COMM:ID3v1 Comment:XXX'                            ' 00000CE5 00000D04 00007047'
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'TBPM' (BPM (beats per minute))                     '123'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDOR' (Original release time)                      '2014'
'TDRC' (Recording time)                             '2014'
'TENC' (Encoded by)                                 'iTunes 11.1.3.8'
'TIT2' (Title/songname/content description)         'Severed Crossed Fingers'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'St. Vincent'
'TPE2' (Band/orchestra/accompaniment)               'St. Vincent'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Loma Vista Recordings'
'TRCK' (Track number/Position in set)               '11/11'
'TSO2'                                              'St. Vincent'
'TSOP' (Performer sort order)                       'St. Vincent'
'TSRC' (ISRC (international standard recording code))  'USUM71318971'
'TXXX:Acoustid Id'                                  '8f24d7f2-f856-4238-acd4-08eea72eca82'
'TXXX:Artists'                                      'St. Vincent'
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'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5334edc0-5faf-4ca5-b1df-000de3e1f752'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
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'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'alternative', 'female vocalists', 'singer songwriter']
'TXXX:originalyear'                                 '2014'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
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'TXXX:q-syn'                                        '2'
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========================== row from database ==========================
                                              'id'  180512
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/St. Vincent/St. Vincent/11 - Severed Crossed Fingers.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  222
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  9007686
                                           'mtime'  1636400843
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 11 ifs songwriter experimental
                                      'tag_artist'  St. Vincent
                                     'tag_release'  St. Vincent
                                       'tag_title'  Severed Crossed Fingers
                                             'bpm'  123.0
                                    'search_title'  'crossed':2 'fingers':3 'severed':1
                                   'search_artist'  'st':1,2 'vincent':3
                                  'search_release'  'st':1,2 'vincent':3
                                     'search_rest'  '00singer':1 'eos':3 'experimental':5 'ifs':4 'songwriter':2
                                    'search_combo'  '00singer':10 'crossed':2A 'eos':12 'experimental':14 'fingers':3A 'ifs':13 'severed':1A 'songwriter':11 'st':4B,5B,7C,8C 'vincent':6B,9C
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'alternative', 'female vocalists', 'singer songwriter']
                                        'tag_date'  2014
                                     'discogstags'  ['art rock', 'electronic', 'rock']

============================== file details ==============================
                                           'mtime'  1636400843.3451934  (2021-11-08 20:47:23)
                             'size'  9007686