======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '127'
                                          'artist'  'Ricky Nelson'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "You're My One And Only Love"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'rock', 'oldies', 'rockabilly', 'classic rock']"
                                     'discogstags'  "['electronic', 'garage house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '121a'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rockabilly'
                                             'bpm'  '144.541'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'None'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TBPM' (BPM (beats per minute))                     '144.541'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rockabilly'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         "You're My One And Only Love"
'TKEY' (Initial key)                                '5A'
'TLEN' (Length)                                     '127000'
'TPE1' (Lead performer(s)/Soloist(s))               'Ricky Nelson'
'TRCK' (Track number/Position in set)               '121a'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'garage house']
'TXXX:lastfmtags'                                   ['60s', 'rock', 'oldies', 'rockabilly', 'classic rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.01 dB'
'TXXX:replaygain_track_peak'                        '0.371260'

========================== row from database ==========================
                                              'id'  1509519
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-121a - Ricky Nelson - You_re My One And Only Love.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  127
                                           'genre'  rock-pop-early-rockabilly
                                        'filesize'  5116824
                                           'mtime'  1622659471
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 121a You_re rock pop early rockabilly
                                      'tag_artist'  Ricky Nelson
                                     'tag_release'  None
                                       'tag_title'  You're My One And Only Love
                                             'bpm'  144.541
                                    'search_title'  'and':6 'love':8 'my':4 'one':5 'only':7 're':2 'you':1 'youre':3
                                   'search_artist'  'nelson':2 'ricky':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '121a':7 '1957':6 'country':4 'early':12 'exotica':2 'jazz':1 'oldies':3 'pop':11 're':9 'rock':10 'rockabilly':13 'you':8
                                    'search_combo'  '00oldiepop':15 '121a':17 '1957':16 'and':6A 'country':14 'early':22 'exotica':12 'jazz':11 'love':8A 'my':4A 'nelson':10B 'oldies':13 'one':5A 'only':7A 'pop':21 're':2A,19 'ricky':9B 'rock':20 'rockabilly':23 'you':1A,18 'youre':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'rock', 'oldies', 'rockabilly', 'classic rock']
                                        'tag_date'  1957
                                     'discogstags'  ['electronic', 'garage house']

============================== file details ==============================
                                           'mtime'  1622659470.9986014  (2021-06-02 20:44:30)
                             'size'  5116824