======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '207'
                                          'artist'  'Pen Rorn & Unknown'
                                     'text_people'  ''
                                         'release'  'Rare Cambodian Tracks | Bodega Pop Vol. 1'
                                           'title'  'Loeung Rom 2 Neak'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '22'
                                      'tracktotal'  '27'
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'loc-asia-cambodia'
                                             'bpm'  '89.493'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000003FA 000001D3 00001749 00001A82 00003234 00025C63 00006535 000064CF '
 '0000668D 0000668D')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000858 00000000008B4418 00000000 00327DB7 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            'AF0AC30E+206840+14+150+12755+28149+39576+56455+68699+83951+102779+118408+135513+147334+160582+174803+191318'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '14'
'TALB' (Album/Movie/Show title)                     'Rare Cambodian Tracks | Bodega Pop Vol. 1'
'TBPM' (BPM (beats per minute))                     '89.493'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-cambodia'
'TDRC' (Recording time)                             '2013'
'TENC' (Encoded by)                                 'iTunes v7.6.2.9'
'TIT2' (Title/songname/content description)         'Loeung Rom 2 Neak'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pen Rorn & Unknown'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '22/27'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.17 dB'
'TXXX:replaygain_track_peak'                        '0.785639'

========================== row from database ==========================
                                              'id'  1395604
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Cambodia/22 Loeung Rom 2 Neak.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  207
                                           'genre'  loc-asia-cambodia
                                        'filesize'  4616714
                                           'mtime'  1621629122
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 22 loc asia cambodia
                                      'tag_artist'  Pen Rorn & Unknown
                                     'tag_release'  Rare Cambodian Tracks | Bodega Pop Vol. 1
                                       'tag_title'  Loeung Rom 2 Neak
                                             'bpm'  89.493
                                    'search_title'  '2':3 'loeung':1 'neak':4 'rom':2
                                   'search_artist'  'pen':1 'rorn':2 'unknown':3
                                  'search_release'  '1':8 'bodega':4 'cambodian':2 'pop':5 'rare':1 'tracks':3 'vol':6,7
                                     'search_rest'  '00asia':1 '22':2 'asia':4 'cambodia':5 'loc':3
                                    'search_combo'  '00asia':16 '1':15C '2':3A '22':17 'asia':19 'bodega':11C 'cambodia':20 'cambodian':9C 'loc':18 'loeung':1A 'neak':4A 'pen':5B 'pop':12C 'rare':8C 'rom':2A 'rorn':6B 'tracks':10C 'unknown':7B 'vol':13C,14C
                                    'tag_tracknum'  22
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2013
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629121.9422286  (2021-05-21 22:32:01)
                             'size'  4616714