======================== unified (from filesystem) ========================
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                                        'duration'  '328'
                                          'artist'  'Rabih Abou-Khalil'
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                                           'title'  'The Lewinsky March'
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                                      'lastfmtags'  "['jazz fusion', 'jazz', 'oud', 'oriental', 'world music', 'world']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '8'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-m-lebanon'
                                             'bpm'  '113.326'
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rest: ''

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

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'TBPM' (BPM (beats per minute))                     '113.326'
'TCON' (Content type, a.k.a. Genre)                 'loc-m-lebanon'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['engineer', 'Walter Quintus'], ['tenor saxophone', 'Ellery Eskelin'], ['euphonium', 'Dave Bargeron'], ['tuba', 'Michel Godard'], ['drums', 'Jarrod Cagwin'], ['frame drum', 'Nabil Khaiat'], ['french horn', 'Tom Varner'], ['alto saxophone', 'Antonio Hart'], ['oud', 'Rabih Abou-Khalil'], ['trumpet', 'Dave Ballou'], ['trumpet', 'Eddie Allen'], ['clarinet', 'Gabriele Mirabassi'], ['cello', 'Vincent Courtois']])
'TIT2' (Title/songname/content description)         'The Lewinsky March'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Rabih Abou-Khalil'
'TPE2' (Band/orchestra/accompaniment)               'Rabih Abou-Khalil'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Enja Records'
'TRCK' (Track number/Position in set)               '1/8'
'TSO2'                                              'Abou-Khalil, Rabih'
'TSOP' (Performer sort order)                       'Abou-Khalil, Rabih'
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'TXXX:Acoustid Id'                                  '612de35e-85ca-4495-962c-b8b2c4ad5490'
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'TXXX:MusicBrainz Album Id'                         '4c526aa1-4f8b-46e8-ae67-8788cd00cd59'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['jazz fusion', 'jazz', 'oud', 'oriental', 'world music', 'world']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.10 dB'
'TXXX:replaygain_track_peak'                        '0.688684'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00localcharacter/rabih abou-khalil/2001 - the cactus of knowledge/Rabih Abou-Khalil - 01 - The Lewinsky March.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  328
                                           'genre'  loc-m-lebanon
                                        'filesize'  5255575
                                           'mtime'  1620526900
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter rabih abou khalil 2001 the cactus knowledge 01 loc m lebanon
                                      'tag_artist'  Rabih Abou-Khalil
                                     'tag_release'  The Cactus of Knowledge
                                       'tag_title'  The Lewinsky March
                                             'bpm'  113.326
                                    'search_title'  'lewinsky':2 'march':3 'the':1
                                   'search_artist'  'abou':2 'aboukhalil':4 'khalil':3 'rabih':1
                                  'search_release'  'cactus':2 'knowledge':4 'of':3 'the':1
                                     'search_rest'  '2001':4 'abou':2 'cactus':6 'khalil':3 'knowledge':7 'lebanon':10 'loc':8 'm':9 'rabih':1 'the':5
                                    'search_combo'  '2001':15 'abou':5B,13 'aboukhalil':7B 'cactus':9C,17 'khalil':6B,14 'knowledge':11C,18 'lebanon':21 'lewinsky':2A 'loc':19 'm':20 'march':3A 'of':10C 'rabih':4B,12 'the':1A,8C,16
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['jazz fusion', 'jazz', 'oud', 'oriental', 'world music', 'world']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526899.677229  (2021-05-09 04:21:39)
                             'size'  5255575