======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '275'
                                          'artist'  'neil young'
                                     'text_people'  ''
                                         'release'  'progsoup 3'
                                           'title'  'out on the weekend'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk rock', 'rock', 'singer songwriter', 'folk', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '42'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '136.643'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'progsoup 3'
'TBPM' (BPM (beats per minute))                     '136.643'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'out on the weekend'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'neil young'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '42'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['folk rock', 'rock', 'singer songwriter', 'folk', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+4.09 dB'
'TXXX:replaygain_track_peak'                        '0.886776'
'TXXX:tracknum'                                     '183'

========================== row from database ==========================
                                              'id'  1416836
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup3/183 neil young - out on the weekend.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  275
                                           'genre'  rock-cppex-progressive
                                        'filesize'  6606358
                                           'mtime'  1620737658
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup3 183 rock cppex progressive
                                      'tag_artist'  neil young
                                     'tag_release'  progsoup 3
                                       'tag_title'  out on the weekend
                                             'bpm'  136.643
                                    'search_title'  'on':2 'out':1 'the':3 'weekend':4
                                   'search_artist'  'neil':1 'young':2
                                  'search_release'  '3':2 'progsoup':1
                                     'search_rest'  '183':4 'classicprogpsy':1 'cppex':6 'progressive':7 'progsoup':2 'progsoup3':3 'rock':5
                                    'search_combo'  '183':12 '3':8C 'classicprogpsy':9 'cppex':14 'neil':5B 'on':2A 'out':1A 'progressive':15 'progsoup':7C,10 'progsoup3':11 'rock':13 'the':3A 'weekend':4A 'young':6B
                                    'tag_tracknum'  42
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['folk rock', 'rock', 'singer songwriter', 'folk', 'classic rock']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737658.4885902  (2021-05-11 14:54:18)
                             'size'  6606358