======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '278'
                                          'artist'  'The Connells'
                                     'text_people'  ''
                                         'release'  'top100'
                                           'title'  "'74 '75"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['indie', '90s', 'alternative', 'pop', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '145.790'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'top100'
'TBPM' (BPM (beats per minute))                     '145.790'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         "'74 '75"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Connells'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '093,189'
'TXXX:Mp3gain_undo'                                 '+003,+003,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'                                     '047'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', '90s', 'alternative', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.609350'

========================== row from database ==========================
                                              'id'  1509530
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/top100/047-The_Connells-_74__75.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  278
                                           'genre'  rock-pop
                                        'filesize'  3906836
                                           'mtime'  1622802054
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 047 The_Connells _74__75 rock pop
                                      'tag_artist'  The Connells
                                     'tag_release'  top100
                                       'tag_title'  '74 '75
                                             'bpm'  145.79
                                    'search_title'  '74':1,2 '75':3,4
                                   'search_artist'  'connells':2 'the':1
                                  'search_release'  'top100':1
                                     'search_rest'  '00poprockelectronic':1 '74':7 '75':8 'connells':6 'dance':3 'generic':2 'pop':10 'rock':9 'the':5 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':8 '74':1A,2A,14 '75':3A,4A,15 'connells':6B,13 'dance':10 'generic':9 'pop':17 'rock':16 'the':5B,12 'top100':7C 'trapbeat':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1B
                                           '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-3', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', '90s', 'alternative', 'pop', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1622802053.6400867  (2021-06-04 12:20:53)
                             'size'  3906836