======================== unified (from filesystem) ========================
                                         'bitrate'  '160.056'
                                        'duration'  '290'
                                          'artist'  'Syria'
                                     'text_people'  ''
                                         'release'  'Songs of the Earth - Astonishing and Rare Voices'
                                           'title'  'Takhshefto '
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-OLDST-3', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['darkwave', 'italian', 'female vocalists', 'german', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'loc-unsorted-mix'
                                             'bpm'  '130.146'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Songs of the Earth - Astonishing and Rare Voices'
'TBPM' (BPM (beats per minute))                     '130.146'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted-mix'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Takhshefto '
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Syria'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['darkwave', 'italian', 'female vocalists', 'german', 'pop']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.61 dB'
'TXXX:replaygain_track_peak'                        '0.757460'

========================== row from database ==========================
                                              'id'  471001
                                            'path'  /data/Music/Bulk/00localcharacter/VA. World 1： Trad/Songs Of The Earth： Astonishing and Rare Voices (Auvidis, Unesco, 1998) [160k]/07 - Syria - Takhshefto .mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  290
                                           'genre'  loc-unsorted-mix
                                        'filesize'  5818166
                                           'mtime'  1620398717
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA. World 1： Trad Of The Earth： (Auvidis, Unesco, 1998) [160k] 07 loc unsorted mix
                                      'tag_artist'  Syria
                                     'tag_release'  Songs of the Earth - Astonishing and Rare Voices
                                       'tag_title'  Takhshefto 
                                             'bpm'  130.146
                                    'search_title'  'takhshefto':1
                                   'search_artist'  'syria':1
                                  'search_release'  'and':6 'astonishing':5 'earth':4 'of':2 'rare':7 'songs':1 'the':3 'voices':8
                                     'search_rest'  '1':4,5,6 '160k':19,20 '1998':17,18 'auvidis':13,14 'earth':10,11,12 'loc':21 'mix':23 'of':8 'the':9 'trad':7 'unesco':15,16 'unsorted':22 'va':1,2 'world':3
                                    'search_combo'  '1':14,15,16 '160k':29,30 '1998':27,28 'and':8C 'astonishing':7C 'auvidis':23,24 'earth':6C,20,21,22 'loc':31 'mix':33 'of':4C,18 'rare':9C 'songs':3C 'syria':2B 'takhshefto':1A 'the':5C,19 'trad':17 'unesco':25,26 'unsorted':32 'va':11,12 'voices':10C 'world':13
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['darkwave', 'italian', 'female vocalists', 'german', 'pop']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620398717.3555717  (2021-05-07 16:45:17)
                             'size'  5818166