======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '204'
                                          'artist'  'Hossam Ramzy'
                                     'text_people'  ''
                                         'release'  'Sabla tolo - Egyptian percussion'
                                           'title'  'Track 01'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['egypt', 'instrumental', 'percussion', 'bellydance', 'world', 'arabic']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-m'
                                             'bpm'  '118.567'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Sabla tolo - Egyptian percussion'
'TBPM' (BPM (beats per minute))                     '118.567'
'TCON' (Content type, a.k.a. Genre)                 'loc-m'
'TIT2' (Title/songname/content description)         'Track 01'
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '204251'
'TPE1' (Lead performer(s)/Soloist(s))               'Hossam Ramzy'
'TRCK' (Track number/Position in set)               '1'
'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'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['egypt', 'instrumental', 'percussion', 'bellydance', 'world', 'arabic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.49 dB'
'TXXX:replaygain_track_peak'                        '0.441089'

========================== row from database ==========================
                                              'id'  1492314
                                            'path'  /data/Music/Bulk/00localcharacter/Buikdans/Hossam Ramzy.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  204
                                           'genre'  loc-m
                                        'filesize'  3270229
                                           'mtime'  1620526865
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Buikdans loc
                                      'tag_artist'  Hossam Ramzy
                                     'tag_release'  Sabla tolo - Egyptian percussion
                                       'tag_title'  Track 01
                                             'bpm'  118.567
                                    'search_title'  'track':1
                                   'search_artist'  'hossam':1 'ramzy':2
                                  'search_release'  'egyptian':3 'percussion':4 'sabla':1 'tolo':2
                                     'search_rest'  'buikdans':1 'loc':2
                                    'search_combo'  'buikdans':8 'egyptian':6C 'hossam':2B 'loc':9 'percussion':7C 'ramzy':3B 'sabla':4C 'tolo':5C 'track':1A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['egypt', 'instrumental', 'percussion', 'bellydance', 'world', 'arabic']
                                        'tag_date'  
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1620526865.1175766  (2021-05-09 04:21:05)
                             'size'  3270229