======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '193'
                                          'artist'  'The Golden Gate Jubilee Quartet'
                                     'text_people'  ''
                                         'release'  'Africa In America 1920-1962: Rock, Jazz & Calypso 1'
                                           'title'  "I'm A Pilgrim"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['gospel', 'all', 'shady', 'grady', 'double-ender 15']"
                                     'discogstags'  "['gospel']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1940'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '123.632'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Africa In America 1920-1962: Rock, Jazz & Calypso 1'
'TBPM' (BPM (beats per minute))                     '123.632'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1940'
'TIT2' (Title/songname/content description)         "I'm A Pilgrim"
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Golden Gate Jubilee Quartet'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '16'
'TSO2'                                              'Africa In America 1920-1962: Rock, Jazz & Calypso'
'TSOA' (Album sort order)                           'Africa In America 1920-1962: Rock, Jazz & Calypso 1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'gospel'
'TXXX:lastfmtags'                                   ['gospel', 'all', 'shady', 'grady', 'double-ender 15']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.91 dB'
'TXXX:replaygain_track_peak'                        '0.530638'

========================== row from database ==========================
                                              'id'  1519779
                                            'path'  /data/Music/Bulk/00localcharacter/00africa/Africa In America 1920-1962_ Rock, Jazz/1/16 I_m A Pilgrim.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  193
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  7845588
                                           'mtime'  1620539643
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00africa 1962_ 16 I_m prerock jb jazz unsorted
                                      'tag_artist'  The Golden Gate Jubilee Quartet
                                     'tag_release'  Africa In America 1920-1962: Rock, Jazz & Calypso 1
                                       'tag_title'  I'm A Pilgrim
                                             'bpm'  123.632
                                    'search_title'  'a':4 'i':1 'im':3 'm':2 'pilgrim':5
                                   'search_artist'  'gate':3 'golden':2 'jubilee':4 'quartet':5 'the':1
                                  'search_release'  '1':11 '1920':4 '19201962':6 '1962':5 'africa':1 'america':3 'calypso':10 'in':2 'jazz':9 'rock':7,8
                                     'search_rest'  '00africa':1 '1962':2 'i':3 'jazz':7 'jb':6 'm':4 'prerock':5 'unsorted':8
                                    'search_combo'  '00africa':22 '1':21C '1920':14C '19201962':16C '1962':15C,23 'a':4A 'africa':11C 'america':13C 'calypso':20C 'gate':8B 'golden':7B 'i':1A,24 'im':3A 'in':12C 'jazz':19C,28 'jb':27 'jubilee':9B 'm':2A,25 'pilgrim':5A 'prerock':26 'quartet':10B 'rock':17C,18C 'the':6B 'unsorted':29
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['gospel', 'all', 'shady', 'grady', 'double-ender 15']
                                        'tag_date'  1940
                                     'discogstags'  ['gospel']

============================== file details ==============================
                                           'mtime'  1620539642.7603962  (2021-05-09 07:54:02)
                             'size'  7845588