======================== unified (from filesystem) ========================
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                                        'duration'  '141'
                                          'artist'  'A. Dzhumabaev'
                                     'text_people'  ''
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                                           'title'  'Ak Manday'
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                                      'lastfmtags'  "['all', 'kyrgyzstan', 'central asian', 'kirgistan', 'kyrgyz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '21'
                                      'tracktotal'  '26'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'loc-asia'
                                             'bpm'  '145.685'
                                             'key'  '10A'
                                        'acoustid'  'afe3bb09-8c54-4e8a-be83-66f60b46ff75'
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======================== rawer (from filesystem) ========================

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'TBPM' (BPM (beats per minute))                     '145.685'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996-07-23'
'TENC' (Encoded by)                                 'bofus'
'TIT2' (Title/songname/content description)         'Ak Manday'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '141706'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'A. Dzhumabaev'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Yazoo Records'
'TRCK' (Track number/Position in set)               '21/26'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Dzhumabaev, A.'
'TXXX:ASIN'                                         'B000000G9G'
'TXXX:Acoustid Id'                                  'afe3bb09-8c54-4e8a-be83-66f60b46ff75'
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'TXXX:MusicBrainz Album Id'                         'ed877963-f6c0-4cef-a8dd-ce05352cbe45'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
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'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
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'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.58 dB'
'TXXX:replaygain_track_peak'                        '0.419079'
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========================== row from database ==========================
                                              'id'  927494
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/the secret museum of mankind vol. 6 [ethnic music classics 1925-48 (central asia)]/21 - Kirghizia - Ak Manday (A.Dzhumabaev).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  141
                                           'genre'  loc-asia
                                        'filesize'  3409519
                                           'mtime'  1652397827
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia the secret museum mankind vol. 6 [ethnic music classics (central asia)] 21 Kirghizia (A.Dzhumabaev) loc asia
                                      'tag_artist'  A. Dzhumabaev
                                     'tag_release'  The Secret Museum of Mankind: Central Asia: Ethnic Music Classics: 1925-1948
                                       'tag_title'  Ak Manday
                                             'bpm'  145.685
                                    'search_title'  'ak':1 'manday':2
                                   'search_artist'  'a':1,2 'dzhumabaev':3
                                  'search_release'  '1925':14 '19251948':16 '1948':15 'asia':8,9 'central':7 'classics':12,13 'ethnic':10 'mankind':5,6 'museum':3 'music':11 'of':4 'secret':2 'the':1
                                     'search_rest'  '00asia':1 '21':17 '6':8 'a':19 'adzhumabaev':21 'asia':15,16 'central':13,14 'classics':12 'dzhumabaev':20 'ethnic':9,10 'kirghizia':18 'loc':22 'mankind':5 'museum':4 'music':11 'secret':3 'the':2 'vol':6,7
                                    'search_combo'  '00asia':22 '1925':19C '19251948':21C '1948':20C '21':38 '6':29 'a':3B,4B,40 'adzhumabaev':42 'ak':1A 'asia':13C,14C,36,37 'central':12C,34,35 'classics':17C,18C,33 'dzhumabaev':5B,41 'ethnic':15C,30,31 'kirghizia':39 'loc':43 'manday':2A 'mankind':10C,11C,26 'museum':8C,25 'music':16C,32 'of':9C 'secret':7C,24 'the':6C,23 'vol':27,28
                                    'tag_tracknum'  21
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HAP-3', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-LOCALNESS-4', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['all', 'kyrgyzstan', 'central asian', 'kirgistan', 'kyrgyz']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397827.1680849  (2022-05-13 01:23:47)
                             'size'  3409519