======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '194'
                                          'artist'  'Pandamonium'
                                     'text_people'  ''
                                         'release'  'Pop-In Vol. 3'
                                           'title'  'Chocolate Buster Dan'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-2', 'q-syn-1', "
 "'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', "
 "'q-other-3', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'all', 'hardcore punk', 'nuggets', 'psychedelic rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '103.220'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:AverageLevel:{\x15\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x15\x00\x00')
'PRIV:PeakValue:¡|\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1|\x00\x00')
'TALB' (Album/Movie/Show title)                     'Pop-In Vol. 3'
'TBPM' (BPM (beats per minute))                     '103.220'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Chocolate Buster Dan'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pandamonium'
'TPE2' (Band/orchestra/accompaniment)               'Pandamonium'
'TRCK' (Track number/Position in set)               '18'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['60s', 'all', 'hardcore punk', 'nuggets', 'psychedelic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.78 dB'
'TXXX:replaygain_track_peak'                        '0.486639'

========================== row from database ==========================
                                              'id'  736090
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Pandamonium - Chocolate Buster Dan (Gravesend, 1968).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  194
                                           'genre'  set-th-candy
                                        'filesize'  4670052
                                           'mtime'  1620343122
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets (Gravesend, 1968) set th candy
                                      'tag_artist'  Pandamonium
                                     'tag_release'  Pop-In Vol. 3
                                       'tag_title'  Chocolate Buster Dan
                                             'bpm'  103.22
                                    'search_title'  'buster':2 'chocolate':1 'dan':3
                                   'search_artist'  'pandamonium':1
                                  'search_release'  '3':6 'in':2 'pop':1 'popin':3 'vol':4,5
                                     'search_rest'  '1968':8,9 'candy':12 'country':4 'exotica':2 'gravesend':6,7 'jazz':1 'oldies':3 'set':10 'sweets':5 'th':11
                                    'search_combo'  '1968':18,19 '3':10C 'buster':2A 'candy':22 'chocolate':1A 'country':14 'dan':3A 'exotica':12 'gravesend':16,17 'in':6C 'jazz':11 'oldies':13 'pandamonium':4B 'pop':5C 'popin':7C 'set':20 'sweets':15 'th':21 'vol':8C,9C
                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'all', 'hardcore punk', 'nuggets', 'psychedelic rock']
                                        'tag_date'  1965
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620343121.9557712  (2021-05-07 01:18:41)
                             'size'  4670052