======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '158'
                                          'artist'  'Sin Sisamouth'
                                     'text_people'  ''
                                         'release'  'Champa Pailin'
                                           'title'  'Trardok Sday Yiem'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['cambodian', 'all', 'psychedelic', 'cambodia', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '16'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-cambodia'
                                             'bpm'  '145.267'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00001270 00000215 00006123 00002A41 00000E49 00023FD0 000081A9 00007D80 '
 '000037D0 000069EB')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000008C4 00000000006AE2AC 00000000 003A1D8E 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '16+C855CE54AC95422E642C7108558F03B1+4404405'
'TALB' (Album/Movie/Show title)                     'Champa Pailin'
'TBPM' (BPM (beats per minute))                     '145.267'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-cambodia'
'TENC' (Encoded by)                                 'iTunes 9.2'
'TIT2' (Title/songname/content description)         'Trardok Sday Yiem'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sin Sisamouth'
'TRCK' (Track number/Position in set)               '12/16'
'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:lastfmtags'                                   ['cambodian', 'all', 'psychedelic', 'cambodia', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.34 dB'
'TXXX:replaygain_track_peak'                        '0.649877'

========================== row from database ==========================
                                              'id'  1396628
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/sin sisamuth - champa pailin/12 Trardok Sday Yiem.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  158
                                           'genre'  loc-asia-cambodia
                                        'filesize'  3815868
                                           'mtime'  1621629218
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia sin sisamuth champa pailin 12 loc asia cambodia
                                      'tag_artist'  Sin Sisamouth
                                     'tag_release'  Champa Pailin
                                       'tag_title'  Trardok Sday Yiem
                                             'bpm'  145.267
                                    'search_title'  'sday':2 'trardok':1 'yiem':3
                                   'search_artist'  'sin':1 'sisamouth':2
                                  'search_release'  'champa':1 'pailin':2
                                     'search_rest'  '00asia':1 'asia':7 'cambodia':8 'champa':4 'loc':6 'pailin':5 'sin':2 'sisamuth':3
                                    'search_combo'  '00asia':8 'asia':14 'cambodia':15 'champa':6C,11 'loc':13 'pailin':7C,12 'sday':2A 'sin':4B,9 'sisamouth':5B 'sisamuth':10 'trardok':1A 'yiem':3A
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['cambodian', 'all', 'psychedelic', 'cambodia', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629218.3288434  (2021-05-21 22:33:38)
                             'size'  3815868