======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '1124'
                                          'artist'  'The Hafler Trio'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "M.N.O.Gol'fish"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-3', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronic', 'industrial', 'avant garde', 'experimental', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-drone'
                                             'bpm'  '120.0'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '120.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-drone'
'TIT2' (Title/songname/content description)         "M.N.O.Gol'fish"
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Hafler Trio'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['electronic', 'industrial', 'avant garde', 'experimental', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-4.59 dB'
'TXXX:replaygain_track_peak'                        '0.808148'

========================== row from database ==========================
                                              'id'  1508355
                                            'path'  /data/Music/Bulk/00poprockelectronic/00drone/The Hafler Trio - M.N.O.Gol_fish.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  1124
                                           'genre'  electronic-drone
                                        'filesize'  22501103
                                           'mtime'  1636913429
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00drone M.N.O.Gol_fish electronic drone
                                      'tag_artist'  The Hafler Trio
                                     'tag_release'  None
                                       'tag_title'  M.N.O.Gol'fish
                                             'bpm'  120.0
                                    'search_title'  'fish':5 'gol':4 'm':1 'mnogolfish':6 'n':2 'o':3
                                   'search_artist'  'hafler':2 'the':1 'trio':3
                                  'search_release'  
                                     'search_rest'  '00drone':2 '00poprockelectronic':1 'drone':11 'electronic':10 'fish':7,9 'gol':6 'm':3 'mnogol':8 'n':4 'o':5
                                    'search_combo'  '00drone':11 '00poprockelectronic':10 'drone':20 'electronic':19 'fish':5A,16,18 'gol':4A,15 'hafler':8B 'm':1A,12 'mnogol':17 'mnogolfish':6A 'n':2A,13 'o':3A,14 'the':7B 'trio':9B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['electronic', 'industrial', 'avant garde', 'experimental', 'ambient']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636913428.926371  (2021-11-14 19:10:28)
                             'size'  22501103