======================== unified (from filesystem) ========================
                                         'bitrate'  '212.351'
                                        'duration'  '177'
                                          'artist'  'Ban-nhac Than-kimb'
                                     'text_people'  ''
                                         'release'  'String Of Pearls: Jewels Of The 78rpm Era 1918-1951'
                                           'title'  'Tieng ai Tram Bong'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1930'
                                        'comments'  ''
                                           'genre'  'loc-unsorted;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '106.252'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'String Of Pearls: Jewels Of The 78rpm Era 1918-1951'
'TBPM' (BPM (beats per minute))                     '106.252'
'TCON' (Content type, a.k.a. Genre)                 ['loc-unsorted', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1930'
'TIT2' (Title/songname/content description)         'Tieng ai Tram Bong'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Ban-nhac Than-kimb'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              'Mississippi Records  [MR-041-1]  LP'
'TRCK' (Track number/Position in set)               '2'
'TXXX:MUTANGIBLE'                                   'http://holywarbles.blogspot.com'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.48 dB'
'TXXX:replaygain_track_peak'                        '0.603002'

========================== row from database ==========================
                                              'id'  768249
                                            'path'  /data/Music/Bulk/00localcharacter/VA - String Of Pearls - Jewels Of The 78rpm Era [1918-1951]/02 - ban-nhac than-kimb - tieng ai tram bong.mp3
                                         'working'  None
                                         'bitrate'  212
                                    'duration_sec'  177
                                           'genre'  loc-unsorted;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  4741188
                                           'mtime'  1621629846
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA [1918 1951] 02 ban than tieng tram bong loc unsorted;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Ban-nhac Than-kimb
                                     'tag_release'  String Of Pearls: Jewels Of The 78rpm Era 1918-1951
                                       'tag_title'  Tieng ai Tram Bong
                                             'bpm'  106.252
                                    'search_title'  'ai':2 'bong':4 'tieng':1 'tram':3
                                   'search_artist'  'ban':1 'bannhac':3 'kimb':5 'nhac':2 'than':4 'thankimb':6
                                  'search_release'  '1918':9 '19181951':11 '1951':10 '78rpm':7 'era':8 'jewels':5 'of':2 'pearls':3,4 'string':1 'the':6
                                     'search_rest'  '1918':2,3 '1951':4,5 'ban':6 'bong':10 'loc':11 'mor':21 'pl':16 'set':13,15,18,20 'shirleyspinoza':17,19 'than':7 'tieng':8 'tram':9 'unsorted':12,14 'va':1
                                    'search_combo'  '1918':19C,23,24 '19181951':21C '1951':20C,25,26 '78rpm':17C 'ai':2A 'ban':5B,27 'bannhac':7B 'bong':4A,31 'era':18C 'jewels':15C 'kimb':9B 'loc':32 'mor':42 'nhac':6B 'of':12C 'pearls':13C,14C 'pl':37 'set':34,36,39,41 'shirleyspinoza':38,40 'string':11C 'than':8B,28 'thankimb':10B 'the':16C 'tieng':1A,29 'tram':3A,30 'unsorted':33,35 'va':22
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1930
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629845.954185  (2021-05-21 22:44:05)
                             'size'  4741188