======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '179'
                                          'artist'  'Warren Zevon'
                                     'text_people'  ''
                                         'release'  'Genius: The Best of Warren Zevon'
                                           'title'  'Hasten Down the Wind'
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                                      'lastfmtags'  "['classic rock', 'alternative', 'rock', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '22'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk;ifs-songwriter-rock'
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======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Genius: The Best of Warren Zevon'
'TBPM' (BPM (beats per minute))                     '132.704'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-folk', 'ifs-songwriter-rock']
'TDOR' (Original release time)                      '2002'
'TDRC' (Recording time)                             '2002-10-15'
'TIT2' (Title/songname/content description)         'Hasten Down the Wind'
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Warren Zevon'
'TPE2' (Band/orchestra/accompaniment)               'Warren Zevon'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Elektra Entertainment/Rhino'
'TRCK' (Track number/Position in set)               '4/22'
'TSO2'                                              'Zevon, Warren'
'TSOP' (Performer sort order)                       'Zevon, Warren'
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'TXXX:Acoustid Id'                                  'fd1e7953-53bb-4c0a-a8ef-7c68b88d9472'
'TXXX:BARCODE'                                      '081227377120'
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'TXXX:MusicBrainz Album Id'                         '7a2ff025-5519-4c67-aa66-6b2921405a57'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '970fb29f-e288-403e-a388-d2a7889bfa47'
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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'                                   ['classic rock', 'alternative', 'rock', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.448903'
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========================== row from database ==========================
                                              'id'  1334054
                                            'path'  /data/Music/Bulk/00poprockelectronic/Warren Zevon - Genius - The Best of/04-hasten down the wind.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  179
                                           'genre'  ifs-songwriter-folk;ifs-songwriter-rock
                                        'filesize'  4320248
                                           'mtime'  1636400712
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 04 hasten down wind ifs songwriter folk;ifs songwriter rock
                                      'tag_artist'  Warren Zevon
                                     'tag_release'  Genius: The Best of Warren Zevon
                                       'tag_title'  Hasten Down the Wind
                                             'bpm'  132.704
                                    'search_title'  'down':2 'hasten':1 'the':3 'wind':4
                                   'search_artist'  'warren':1 'zevon':2
                                  'search_release'  'best':4 'genius':1,2 'of':5 'the':3 'warren':6 'zevon':7
                                     'search_rest'  '00poprockelectronic':1 'down':3 'folk':7,9 'hasten':2 'ifs':5,8,10 'rock':11 'songwriter':6 'wind':4
                                    'search_combo'  '00poprockelectronic':14 'best':10C 'down':2A,16 'folk':20,22 'genius':7C,8C 'hasten':1A,15 'ifs':18,21,23 'of':11C 'rock':24 'songwriter':19 'the':3A,9C 'warren':5B,12C 'wind':4A,17 'zevon':6B,13C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', 'alternative', 'rock', 'folk', 'singer songwriter']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400712.3722174  (2021-11-08 20:45:12)
                             'size'  4320248