======================== unified (from filesystem) ========================
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                                        'duration'  '181'
                                          'artist'  'Richard Chelobani'
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                                           'title'  'Grace Nakhalia'
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                             'musicbrainz_albumid'  ''
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                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '25'
                                            'date'  '1998'
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======================== rawer (from filesystem) ========================

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'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Grace Nakhalia'
'TKEY' (Initial key)                                '8B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Richard Chelobani'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Yazoo Records'
'TRCK' (Track number/Position in set)               '15/25'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Richard Chelobani'
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'TXXX:BARCODE'                                      '016351701527'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Artist Id'                        '4d3c9832-6745-456a-93b2-3709a24af084'
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'TXXX:q-drums'                                      '1'
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'TXXX:q-mixbeat'                                    '1'
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'TXXX:q-piano'                                      '1'
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'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.09 dB'
'TXXX:replaygain_track_peak'                        '0.617826'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'278708d7-0da2-4a24-87a6-b1cb80e65c3c')

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00localcharacter/the secret museum of mankind vol. 8 [ethnic music classics 1925-48 (east africa)]/15 (KENYA, LUYHA, BUSUKU) Richard Chelobani - Grace Nakhalia.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  181
                                           'genre'  loc-unsorted
                                        'filesize'  2910045
                                           'mtime'  1621627317
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter the secret museum mankind vol. 8 [ethnic music classics 1925 48 (east africa)] 15 (KENYA, LUYHA, BUSUKU) loc unsorted
                                      'tag_artist'  Richard Chelobani
                                     'tag_release'  The Secret Museum of Mankind: Music of East Africa
                                       'tag_title'  Grace Nakhalia
                                             'bpm'  84.844
                                    'search_title'  'grace':1 'nakhalia':2
                                   'search_artist'  'chelobani':2 'richard':1
                                  'search_release'  'africa':9 'east':8 'mankind':5,6 'museum':3 'music':7 'of':4 'secret':2 'the':1
                                     'search_rest'  '1925':12 '48':13 '8':7 'africa':16,17 'busuku':22,23 'classics':11 'east':14,15 'ethnic':8,9 'kenya':18,19 'loc':24 'luyha':20,21 'mankind':4 'museum':3 'music':10 'secret':2 'the':1 'unsorted':25 'vol':5,6
                                    'search_combo'  '1925':25 '48':26 '8':20 'africa':13C,29,30 'busuku':35,36 'chelobani':4B 'classics':24 'east':12C,27,28 'ethnic':21,22 'grace':1A 'kenya':31,32 'loc':37 'luyha':33,34 'mankind':9C,10C,17 'museum':7C,16 'music':11C,23 'nakhalia':2A 'of':8C 'richard':3B 'secret':6C,15 'the':5C,14 'unsorted':38 'vol':18,19
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['hip-hop', 'world', 'africa', 'african', 'kenya']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627317.408764  (2021-05-21 22:01:57)
                             'size'  2910045