======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '199'
                                          'artist'  'stuart'
                                     'text_people'  ''
                                         'release'  'Top 40'
                                           'title'  'fuel to fire-wk29-woei'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['indie', 'dance', 'emo', 'rock', 'house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '128.986'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Top 40'
'TBPM' (BPM (beats per minute))                     '128.986'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'fuel to fire-wk29-woei'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'stuart'
'TXXX:Mp3gain_minmax'                               '112,181'
'TXXX:Mp3gain_undo'                                 '+005,+005,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tracknum'                                     '23'
'TXXX:lastfmtags'                                   ['indie', 'dance', 'emo', 'rock', 'house']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.96 dB'
'TXXX:replaygain_track_peak'                        '0.448069'

========================== row from database ==========================
                                              'id'  1406725
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Top 40/23-stuart_-_fuel_to_fire-wk29-woei.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  199
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  4799821
                                           'mtime'  1621695902
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 23 stuart_ _fuel_to_fire electronic generic or radio dance
                                      'tag_artist'  stuart
                                     'tag_release'  Top 40
                                       'tag_title'  fuel to fire-wk29-woei
                                             'bpm'  128.986
                                    'search_title'  'fire':3 'firewk29woei':6 'fuel':1 'to':2 'wk29':4 'woei':5
                                   'search_artist'  'stuart':1
                                  'search_release'  '40':2 'top':1
                                     'search_rest'  '00poprockelectronic':1 '23':5 'dance':3 'electronic':10 'fire':9 'fuel':7 'generic':2 'or':11 'radio':12 'stuart':6 'to':8 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':10 '23':14 '40':9C 'dance':12 'electronic':19 'fire':3A,18 'firewk29woei':6A 'fuel':1A,16 'generic':11 'or':20 'radio':21 'stuart':7B,15 'to':2A,17 'top':8C 'trapbeat':13 'wk29':4A 'woei':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'dance', 'emo', 'rock', 'house']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695901.7487288  (2021-05-22 17:05:01)
                             'size'  4799821