======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '295'
                                          'artist'  'Dania'
                                     'text_people'  ''
                                         'release'  'Arabic Music Singles'
                                           'title'  ' Yalla Bina'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lebanese', 'arabic', 'arabic pop', 'female vocalists', 'world']"
                                     'discogstags'  "['house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-m'
                                             'bpm'  '105.753'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Arabic Music Singles'
'TBPM' (BPM (beats per minute))                     '105.753'
'TCON' (Content type, a.k.a. Genre)                 'loc-m'
'TIT2' (Title/songname/content description)         ' Yalla Bina'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dania'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '099,186'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'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:discogstags'                                  ['house', 'electronic']
'TXXX:lastfmtags'                                   ['lebanese', 'arabic', 'arabic pop', 'female vocalists', 'world']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.80 dB'
'TXXX:replaygain_track_peak'                        '0.666881'

========================== row from database ==========================
                                              'id'  922988
                                            'path'  /data/Music/Bulk/00localcharacter/00south-europe-middle-east/Arabic Music Singles/2 Med. Volume [174k VBR]/Dania - Yalla Bina.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  295
                                           'genre'  loc-m
                                        'filesize'  4723244
                                           'mtime'  1620526401
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00south europe middle east 2 Med. Volume [174k VBR] loc m
                                      'tag_artist'  Dania
                                     'tag_release'  Arabic Music Singles
                                       'tag_title'   Yalla Bina
                                             'bpm'  105.753
                                    'search_title'  'bina':2 'yalla':1
                                   'search_artist'  'dania':1
                                  'search_release'  'arabic':1 'music':2 'singles':3
                                     'search_rest'  '00south':1 '174k':9,10 '2':5 'east':4 'europe':2 'loc':13 'm':14 'med':6,7 'middle':3 'vbr':11,12 'volume':8
                                    'search_combo'  '00south':7 '174k':15,16 '2':11 'arabic':4C 'bina':2A 'dania':3B 'east':10 'europe':8 'loc':19 'm':20 'med':12,13 'middle':9 'music':5C 'singles':6C 'vbr':17,18 'volume':14 'yalla':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           '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-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['lebanese', 'arabic', 'arabic pop', 'female vocalists', 'world']
                                        'tag_date'  
                                     'discogstags'  ['house', 'electronic']

============================== file details ==============================
                                           'mtime'  1620526401.469733  (2021-05-09 04:13:21)
                             'size'  4723244