======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '281'
                                          'artist'  'Persian-arabic '
                                     'text_people'  ''
                                         'release'  'World tracks from various countries and albums'
                                           'title'  'Belly Dance Music - Aliek Asaal'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'Q-PIANO-3', 'q-chart-1', 'q-drums-1', 'q-other-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '00'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-m;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '115.064'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'World tracks from various countries and albums'
'TBPM' (BPM (beats per minute))                     '115.064'
'TCON' (Content type, a.k.a. Genre)                 ['loc-m', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TIT2' (Title/songname/content description)         'Belly Dance Music - Aliek Asaal'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '281000'
'TPE1' (Lead performer(s)/Soloist(s))               'Persian-arabic '
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '00'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '3'
'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-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+5.52 dB'
'TXXX:replaygain_track_peak'                        '0.913505'

========================== row from database ==========================
                                              'id'  1523227
                                            'path'  /data/Music/Bulk/0soundtrack/VA - __World__ tracks from various countries & albums/Arabic Music [64k-128k]/persian arabic - belly dance music aliek asaa.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  281
                                           'genre'  loc-m;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  4501376
                                           'mtime'  1620527812
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack VA __World__ & Arabic [64k 128k] persian belly dance music aliek asaa loc m;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Persian-arabic 
                                     'tag_release'  World tracks from various countries and albums
                                       'tag_title'  Belly Dance Music - Aliek Asaal
                                             'bpm'  115.064
                                    'search_title'  'aliek':4 'asaal':5 'belly':1 'dance':2 'music':3
                                   'search_artist'  'arabic':2 'persian':1 'persianarabic':3
                                  'search_release'  'albums':7 'and':6 'countries':5 'from':3 'tracks':2 'various':4 'world':1
                                     'search_rest'  '0soundtrack':1 '128k':7,8 '64k':5,6 'aliek':13 'arabic':4 'asaa':14 'belly':10 'dance':11 'loc':15 'm':16,18 'mor':25 'music':12 'persian':9 'pl':20 'set':17,19,22,24 'shirleyspinoza':21,23 'va':2 'world':3
                                    'search_combo'  '0soundtrack':16 '128k':22,23 '64k':20,21 'albums':15C 'aliek':4A,28 'and':14C 'arabic':7B,19 'asaa':29 'asaal':5A 'belly':1A,25 'countries':13C 'dance':2A,26 'from':11C 'loc':30 'm':31,33 'mor':40 'music':3A,27 'persian':6B,24 'persianarabic':8B 'pl':35 'set':32,34,37,39 'shirleyspinoza':36,38 'tracks':10C 'va':17 'various':12C 'world':9C,18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-4', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527811.9131386  (2021-05-09 04:36:51)
                             'size'  4501376