======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '79'
                                          'artist'  'Kelek Kumaqay-olu'
                                     'text_people'  ''
                                         'release'  'The Silk Road: A Musical Caravan (disc 2: Minstrels and Lovers)'
                                           'title'  'Tepen Kök (Kazakh from Mongolia)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['central asia']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'loc-asia'
                                             'bpm'  '120.3'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Silk Road: A Musical Caravan (disc 2: Minstrels and Lovers)'
'TBPM' (BPM (beats per minute))                     '120.3'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Tepen Kök (Kazakh from Mongolia)'
'TKEY' (Initial key)                                '3B'
'TLEN' (Length)                                     '79344'
'TPE1' (Lead performer(s)/Soloist(s))               'Kelek Kumaqay-olu'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '3'
'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:lastfmtags'                                   'central asia'
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.24 dB'
'TXXX:replaygain_track_peak'                        '0.336731'

========================== row from database ==========================
                                              'id'  729137
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Various Artists - The Silk Road - Minstrels And Lovers [Disc 2] [@320]/03 - Kelek Kumaqay-olu - Tepen Kök (Kazakh from Mongolia).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  79
                                           'genre'  loc-asia
                                        'filesize'  3174784
                                           'mtime'  1652397812
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Various Artists And [Disc 2] [@320] 03 Kök loc asia
                                      'tag_artist'  Kelek Kumaqay-olu
                                     'tag_release'  The Silk Road: A Musical Caravan (disc 2: Minstrels and Lovers)
                                       'tag_title'  Tepen Kök (Kazakh from Mongolia)
                                             'bpm'  120.3
                                    'search_title'  'from':8 'k':3,5 'ka':2,4 'kazakh':6,7 'mongolia':9,10 'tepen':1
                                   'search_artist'  'kelek':1 'kumaqay':2 'kumaqayolu':4 'olu':3
                                  'search_release'  '2':10,11 'a':5 'and':13 'caravan':7 'disc':8,9 'lovers':14,15 'minstrels':12 'musical':6 'road':3,4 'silk':2 'the':1
                                     'search_rest'  '2':6,7 '320':8,9 'and':3 'artists':2 'asia':13 'disc':4,5 'kok':10,11 'loc':12 'various':1
                                    'search_combo'  '2':24C,25C,35,36 '320':37,38 'a':19C 'and':27C,32 'artists':31 'asia':42 'caravan':21C 'disc':22C,23C,33,34 'from':8A 'k':3A,5A 'ka':2A,4A 'kazakh':6A,7A 'kelek':11B 'kok':39,40 'kumaqay':12B 'kumaqayolu':14B 'loc':41 'lovers':28C,29C 'minstrels':26C 'mongolia':9A,10A 'musical':20C 'olu':13B 'road':17C,18C 'silk':16C 'tepen':1A 'the':15C 'various':30
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HAP-3', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['central asia']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397812.3088818  (2022-05-13 01:23:32)
                             'size'  3174784