======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '219'
                                          'artist'  'Kor Kai'
                                     'text_people'  ''
                                         'release'  'The Sound of Siam 2: Molam & Luk Thung Isan from North-East Thailand 1970-1982'
                                           'title'  'Montien Tienthong'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'loc-asia-thailand'
                                             'bpm'  '87.710'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Sound of Siam 2: Molam & Luk Thung Isan from North-East Thailand 1970-1982'
'TBPM' (BPM (beats per minute))                     '87.710'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-thailand'
'TDRC' (Recording time)                             '2014'
'TENC' (Encoded by)                                 'exy'
'TIT2' (Title/songname/content description)         'Montien Tienthong'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kor Kai'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '06'
'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:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+0.74 dB'
'TXXX:replaygain_track_peak'                        '0.359532'

========================== row from database ==========================
                                              'id'  927005
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/The Sound of Siam Vol. 2 - Molam & Luk Thung Isan from North-East Thailand 1970-1982/06 Kor Kai - Montien Tienthong.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  219
                                           'genre'  loc-asia-thailand
                                        'filesize'  8924728
                                           'mtime'  1621627010
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Vol. 06 loc asia thailand
                                      'tag_artist'  Kor Kai
                                     'tag_release'  The Sound of Siam 2: Molam & Luk Thung Isan from North-East Thailand 1970-1982
                                       'tag_title'  Montien Tienthong
                                             'bpm'  87.71
                                    'search_title'  'montien':1 'tienthong':2
                                   'search_artist'  'kai':2 'kor':1
                                  'search_release'  '1970':16 '19701982':18 '1982':17 '2':5,6 'east':13 'from':11 'isan':10 'luk':8 'molam':7 'north':12 'northeast':14 'of':3 'siam':4 'sound':2 'thailand':15 'the':1 'thung':9
                                     'search_rest'  '00asia':1 'asia':5 'loc':4 'thailand':6 'vol':2,3
                                    'search_combo'  '00asia':23 '1970':20C '19701982':22C '1982':21C '2':9C,10C 'asia':27 'east':17C 'from':15C 'isan':14C 'kai':4B 'kor':3B 'loc':26 'luk':12C 'molam':11C 'montien':1A 'north':16C 'northeast':18C 'of':7C 'siam':8C 'sound':6C 'thailand':19C,28 'the':5C 'thung':13C 'tienthong':2A 'vol':24,25
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-2', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2014
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627009.977317  (2021-05-21 21:56:49)
                             'size'  8924728