======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '198'
                                          'artist'  'Gotcha'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Higher Heaven'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['funk', 'dutch', 'crossover', 'all', 'lab']"
                                     'discogstags'  "['electronic', 'hi nrg', 'synth-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '109.173'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '109.173'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TIT2' (Title/songname/content description)         'Higher Heaven'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Gotcha'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'hi nrg', 'synth-pop']
'TXXX:lastfmtags'                                   ['funk', 'dutch', 'crossover', 'all', 'lab']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.75 dB'
'TXXX:replaygain_track_peak'                        '0.642764'

========================== row from database ==========================
                                              'id'  1264213
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/Gotcha/Gotcha/Gotcha - Higher Heaven.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  198
                                           'genre'  funk or soul
                                        'filesize'  4769578
                                           'mtime'  1628357858
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul funk or soul
                                      'tag_artist'  Gotcha
                                     'tag_release'  None
                                       'tag_title'  Higher Heaven
                                             'bpm'  109.173
                                    'search_title'  'heaven':2 'higher':1
                                   'search_artist'  'gotcha':1
                                  'search_release'  
                                     'search_rest'  'funk':2 'or':4 'soul':3 'swing':1
                                    'search_combo'  'funk':5 'gotcha':3B 'heaven':2A 'higher':1A 'or':7 'soul':6 'swing':4
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['funk', 'dutch', 'crossover', 'all', 'lab']
                                        'tag_date'  
                                     'discogstags'  ['electronic', 'hi nrg', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1628357857.9801729  (2021-08-07 19:37:37)
                             'size'  4769578