======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '175'
                                          'artist'  'Eric Delaney'
                                     'text_people'  ''
                                         'release'  'Betty Page Jungle Girl Exotiqu'
                                           'title'  'Lucky Mambo'
                                           'quals'  ("['Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'q-syn-2', 'q-bass-3', 'q-busy-2', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-2', 'q-chart-2', 'q-drums-3', 'q-other-4', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'burlesque', 'wtf', 'no comment', 'what the fuck']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '129.315'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Betty Page Jungle Girl Exotiqu'
'TBPM' (BPM (beats per minute))                     '129.315'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TIT2' (Title/songname/content description)         'Lucky Mambo'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Eric Delaney'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazz', 'burlesque', 'wtf', 'no comment', 'what the fuck']
'TXXX:q-bass'                                       '3'
'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'                        '+0.82 dB'
'TXXX:replaygain_track_peak'                        '0.424222'

========================== row from database ==========================
                                              'id'  260586
                                            'path'  /data/Music/Bulk/0soundtrack/Betty Page Jungle Girl Exotiqu/10 - Lucky Mambo.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  175
                                           'genre'  soundtrack-video
                                        'filesize'  2805020
                                           'mtime'  1620332781
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack 10 soundtrack video
                                      'tag_artist'  Eric Delaney
                                     'tag_release'  Betty Page Jungle Girl Exotiqu
                                       'tag_title'  Lucky Mambo
                                             'bpm'  129.315
                                    'search_title'  'lucky':1 'mambo':2
                                   'search_artist'  'delaney':2 'eric':1
                                  'search_release'  'betty':1 'exotiqu':5 'girl':4 'jungle':3 'page':2
                                     'search_rest'  '0soundtrack':1 'soundtrack':2 'video':3
                                    'search_combo'  '0soundtrack':10 'betty':5C 'delaney':4B 'eric':3B 'exotiqu':9C 'girl':8C 'jungle':7C 'lucky':1A 'mambo':2A 'page':6C 'soundtrack':11 'video':12
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6A
                                           '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-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'burlesque', 'wtf', 'no comment', 'what the fuck']
                                        'tag_date'  
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620332780.8097067  (2021-05-06 22:26:20)
                             'size'  2805020