======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '145'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Ethnic Minority Music of North Vietnam'
                                           'title'  'Piem Zat'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '15'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'loc-asia-vietnam'
                                             'bpm'  '143.112'
                                             'key'  '12B'
                                        'acoustid'  'bcf1706b-8cce-4453-b3ab-cf6f151015b8'
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00007007 00007011 00010A80 00010AA3 0001D5CB 0001D5CB 00007C54 00007C4A '
 '00013429 0001920A')
'COMM:iTunPGAP:eng'                                 '0/'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000009D8 000000000061A298 00000000 00351564 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '15+E315A22D15711D5731FDB5BDF9FDF288+10090419'
'TALB' (Album/Movie/Show title)                     'Ethnic Minority Music of North Vietnam'
'TBPM' (BPM (beats per minute))                     '143.112'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-vietnam'
'TDOR' (Original release time)                      '2007'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'iTunes v7.4.2.4'
'TIT2' (Title/songname/content description)         'Piem Zat'
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sublime Frequencies'
'TRCK' (Track number/Position in set)               '14/15'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       '[unknown]'
'TXXX:Acoustid Id'                                  'bcf1706b-8cce-4453-b3ab-cf6f151015b8'
'TXXX:CATALOGNUMBER'                                'SF037'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         'b254e8f4-88e6-4f7a-9c80-68be1d545a58'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '125ec42a-7229-4250-afc5-e057484327fe'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.98 dB'
'TXXX:replaygain_track_peak'                        '0.249413'
'TXXX:tracknum'                                     '14'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'da30e86f-95da-4e94-8ba7-c656af34fde2')

========================== row from database ==========================
                                              'id'  479294
                                            'path'  /data/Music/Bulk/00localcharacter/Sublime Frequencies/[SF037] Various Artists - Ethnic Minority Music Of North Vietnam (Sublime Frequencies,2007)/14 Piem Zat.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  145
                                           'genre'  loc-asia-vietnam
                                        'filesize'  3490657
                                           'mtime'  1620586014
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Sublime Frequencies [SF037] Various Artists Of (Sublime Frequencies,2007) 14 loc asia vietnam
                                      'tag_artist'  [unknown]
                                     'tag_release'  Ethnic Minority Music of North Vietnam
                                       'tag_title'  Piem Zat
                                             'bpm'  143.112
                                    'search_title'  'piem':1 'zat':2
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'ethnic':1 'minority':2 'music':3 'north':5 'of':4 'vietnam':6
                                     'search_rest'  '2007':10,12 'artists':6 'asia':14 'frequencies':2,9,11 'loc':13 'of':7 'sf037':3,4 'sublime':1,8 'various':5 'vietnam':15
                                    'search_combo'  '2007':20,22 'artists':16 'asia':24 'ethnic':5C 'frequencies':12,19,21 'loc':23 'minority':6C 'music':7C 'north':9C 'of':8C,17 'piem':1A 'sf037':13,14 'sublime':11,18 'unknown':3B,4B 'various':15 'vietnam':10C,25 'zat':2A
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', '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'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620586013.9387617  (2021-05-09 20:46:53)
                             'size'  3490657