======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '188'
                                          'artist'  'Khan Shushinsky'
                                     'text_people'  ''
                                         'release'  'The Secret Museum of Mankind: Central Asia: Ethnic Music Classics: 1925-1948'
                                           'title'  'Segiakh Murza Gusein'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '26'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'loc-asia'
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                                             'key'  '10A'
                                        'acoustid'  '2a85a81a-2525-4cd4-9b05-b44b48a93850'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '143.416'
'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)         'Segiakh Murza Gusein'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '188626'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Khan Shushinsky'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Yazoo Records'
'TRCK' (Track number/Position in set)               '6/26'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Shushinsky, Khan'
'TXXX:ASIN'                                         'B000000G9G'
'TXXX:Acoustid Id'                                  '2a85a81a-2525-4cd4-9b05-b44b48a93850'
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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'
'TXXX:MusicBrainz Artist Id'                        '82ca81fe-25b8-40b8-9b43-2199657e7183'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
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'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.82 dB'
'TXXX:replaygain_track_peak'                        '0.436482'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'e2043a14-0f0a-4c89-8929-f93c44b6ad51')

========================== row from database ==========================
                                              'id'  928183
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/the secret museum of mankind vol. 6 [ethnic music classics 1925-48 (central asia)]/06 - Azerbaijan - Segiakh Murza Gusein (Khan Shushinsky).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  188
                                           'genre'  loc-asia
                                        'filesize'  4536636
                                           'mtime'  1652397826
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia the secret museum mankind vol. 6 [ethnic music classics (central asia)] 06 Azerbaijan (Khan Shushinsky) loc asia
                                      'tag_artist'  Khan Shushinsky
                                     'tag_release'  The Secret Museum of Mankind: Central Asia: Ethnic Music Classics: 1925-1948
                                       'tag_title'  Segiakh Murza Gusein
                                             'bpm'  143.416
                                    'search_title'  'gusein':3 'murza':2 'segiakh':1
                                   'search_artist'  'khan':1 'shushinsky':2
                                  '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 '6':8 'asia':15,16 'azerbaijan':17 'central':13,14 'classics':12 'ethnic':9,10 'khan':18,19 'loc':22 'mankind':5 'museum':4 'music':11 'secret':3 'shushinsky':20,21 'the':2 'vol':6,7
                                    'search_combo'  '00asia':22 '1925':19C '19251948':21C '1948':20C '6':29 'asia':13C,14C,36,37 'azerbaijan':38 'central':12C,34,35 'classics':17C,18C,33 'ethnic':15C,30,31 'gusein':3A 'khan':4B,39,40 'loc':43 'mankind':10C,11C,26 'murza':2A 'museum':8C,25 'music':16C,32 'of':9C 'secret':7C,24 'segiakh':1A 'shushinsky':5B,41,42 'the':6C,23 'vol':27,28
                                    'tag_tracknum'  6
                                      '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-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  []
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397826.372228  (2022-05-13 01:23:46)
                             'size'  4536636