======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '239'
                                          'artist'  'Venetian Snares'
                                     'text_people'  ''
                                         'release'  'Winter in the Belly of a Snake'
                                           'title'  'Dad'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-3', "
 "'Q-OLDST-3', 'Q-PLAY-3', 'q-syn-4', 'q-bass-4', 'q-busy-4', 'q-grit-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-vocals-2', 'q-mixbeat-2', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['electronica', 'idm', 'electronic', 'breakcore', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-glitch-breakcore'
                                             'bpm'  '129.481'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Winter in the Belly of a Snake'
'TBPM' (BPM (beats per minute))                     '129.481'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-glitch-breakcore'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Dad'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Venetian Snares'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['electronica', 'idm', 'electronic', 'breakcore', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.68 dB'
'TXXX:replaygain_track_peak'                        '0.530536'

========================== row from database ==========================
                                              'id'  132400
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Venetian Snares/(2002) Winter in the Belly of a Snake/Venetian Snares - Winter In The Belly Of A Snake - 01 - Dad.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  239
                                           'genre'  electronic-experimental-glitch-breakcore
                                        'filesize'  5741410
                                           'mtime'  1621627451
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm (2002) In The Of A 01 electronic experimental glitch breakcore
                                      'tag_artist'  Venetian Snares
                                     'tag_release'  Winter in the Belly of a Snake
                                       'tag_title'  Dad
                                             'bpm'  129.481
                                    'search_title'  'dad':1
                                   'search_artist'  'snares':2 'venetian':1
                                  'search_release'  'a':6 'belly':4 'in':2 'of':5 'snake':7 'the':3 'winter':1
                                     'search_rest'  '2002':1,2 'a':6 'breakcore':10 'electronic':7 'experimental':8 'glitch':9 'in':3 'of':5 'the':4
                                    'search_combo'  '2002':11,12 'a':9C,16 'belly':7C 'breakcore':20 'dad':1A 'electronic':17 'experimental':18 'glitch':19 'in':5C,13 'of':8C,15 'snake':10C 'snares':3B 'the':6C,14 'venetian':2B 'winter':4C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-3', 'q-syn-4', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['electronica', 'idm', 'electronic', 'breakcore', 'experimental']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627450.533056  (2021-05-21 22:04:10)
                             'size'  5741410