======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '121'
                                          'artist'  'Can Can'
                                     'text_people'  ''
                                         'release'  'PrimeCuts (Movie Themes)'
                                           'title'  'Electronic Can Can'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'rock ecuatoriano', 'prog pop', 'ecuador', 'rock']"
                                     'discogstags'  "['latin', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '98.597'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'PrimeCuts (Movie Themes)'
'TBPM' (BPM (beats per minute))                     '98.597'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Electronic Can Can'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Can Can'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['latin', 'rock']
'TXXX:lastfmtags'                                   ['indie', 'rock ecuatoriano', 'prog pop', 'ecuador', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '+2.27 dB'
'TXXX:replaygain_track_peak'                        '0.526936'

========================== row from database ==========================
                                              'id'  506803
                                            'path'  /data/Music/Bulk/0soundtrack/Unsorted/Can Can - Electronic Can Can - Jean Jacques Perrey and Gershon Kingsley.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  121
                                           'genre'  soundtrack-video
                                        'filesize'  2907016
                                           'mtime'  1621489336
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Unsorted Jean Jacques Perrey and Gershon Kingsley soundtrack video
                                      'tag_artist'  Can Can
                                     'tag_release'  PrimeCuts (Movie Themes)
                                       'tag_title'  Electronic Can Can
                                             'bpm'  98.597
                                    'search_title'  'can':2 'electronic':1
                                   'search_artist'  'can':1
                                  'search_release'  'cuts':7 'movie':2,3 'prime':6 'primecuts':1 'themes':4,5
                                     'search_rest'  '0soundtrack':1 'and':6 'gershon':7 'jacques':4 'jean':3 'kingsley':8 'perrey':5 'soundtrack':9 'unsorted':2 'video':10
                                    'search_combo'  '0soundtrack':11 'and':16 'can':2A,3B 'cuts':10C 'electronic':1A 'gershon':17 'jacques':14 'jean':13 'kingsley':18 'movie':5C,6C 'perrey':15 'prime':9C 'primecuts':4C 'soundtrack':19 'themes':7C,8C 'unsorted':12 'video':20
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'rock ecuatoriano', 'prog pop', 'ecuador', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  ['latin', 'rock']

============================== file details ==============================
                                           'mtime'  1621489335.5451677  (2021-05-20 07:42:15)
                             'size'  2907016