======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '293'
                                          'artist'  'Pink Floyd'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Learning to Fly'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic "
 "rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '84.245'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '84.245'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TIT2' (Title/songname/content description)         'Learning to Fly'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Pink Floyd'
'TSOP' (Performer sort order)                       'Pink Floyd'
'TXXX:Artists'                                      'Pink Floyd'
'TXXX:Mp3gain_minmax'                               '127,191'
'TXXX:Mp3gain_undo'                                 '+002,+002,N'
'TXXX:MusicBrainz Artist Id'                        '83d91898-7763-47d7-b03b-b92132375c47'
'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:Tracknum'                                     '02'
'TXXX:lastfmtags'                                   ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.40 dB'
'TXXX:replaygain_track_peak'                        '0.712139'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'63fcd067-81fd-47b3-bdcc-7cd7b3c1a80a')

========================== row from database ==========================
                                              'id'  1490454
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Pink Floyd/A Momentary Lapse Of Reason/Pink Floyd - Learning to Fly - 02.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  293
                                           'genre'  rock-cppex-progressive
                                        'filesize'  4112686
                                           'mtime'  1620737712
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy A Momentary Lapse Of Reason 02 rock cppex progressive
                                      'tag_artist'  Pink Floyd
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Learning to Fly
                                             'bpm'  84.245
                                    'search_title'  'fly':3 'learning':1 'to':2
                                   'search_artist'  'floyd':2 'pink':1
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  'a':2 'classicprogpsy':1 'cppex':8 'lapse':4 'momentary':3 'of':5 'progressive':9 'reason':6 'rock':7
                                    'search_combo'  'a':12 'album':7C 'classicprogpsy':11 'cppex':18 'floyd':5B 'fly':3A 'lapse':14 'learning':1A 'momentary':13 'non':6C 'nonalbum':8C 'of':15 'pink':4B 'progressive':19 'reason':16 'rock':17 'to':2A 'tracks':9C,10C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737712.4580286  (2021-05-11 14:55:12)
                             'size'  4112686