======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '112'
                                          'artist'  'Larry Williams'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'You Bug Me, Baby'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ('[\'rock and roll\', \'rock n roll\', "rock \'n\' roll", \'50s\', '
 "'rockabilly']")
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '262'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '92.899'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '92.899'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1957'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Sicherer Modus)'
'TIT2' (Title/songname/content description)         'You Bug Me, Baby'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Larry Williams'
'TRCK' (Track number/Position in set)               '262'
'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'                                  'jazz'
'TXXX:lastfmtags'                                   ['rock and roll', 'rock n roll', "rock 'n' roll", '50s', 'rockabilly']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'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'                        '-0.58 dB'
'TXXX:replaygain_track_peak'                        '0.700758'

========================== row from database ==========================
                                              'id'  1432020
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-262 - Larry Williams - You Bug Me, Baby.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  112
                                           'genre'  prerock-unsorted
                                        'filesize'  4526578
                                           'mtime'  1621698330
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 262 prerock unsorted
                                      'tag_artist'  Larry Williams
                                     'tag_release'  None
                                       'tag_title'  You Bug Me, Baby
                                             'bpm'  92.899
                                    'search_title'  'baby':5 'bug':2 'me':3,4 'you':1
                                   'search_artist'  'larry':1 'williams':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1957':6 '262':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':12 '1957':13 '262':14 'baby':5A 'bug':2A 'country':11 'exotica':9 'jazz':8 'larry':6B 'me':3A,4A 'oldies':10 'prerock':15 'unsorted':16 'williams':7B 'you':1A
                                    'tag_tracknum'  262
                                      'num_images'  0
                                             'key'  9B
                                           '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-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['rock and roll', 'rock n roll', "rock 'n' roll", '50s', 'rockabilly']
                                        'tag_date'  1957
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1621698329.8094985  (2021-05-22 17:45:29)
                             'size'  4526578