======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '136'
                                          'artist'  'Hopscotch'
                                     'text_people'  ''
                                         'release'  "Tape No111 - Let's Live For Today"
                                           'title'  'Look At The Lights Go Up'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['trip-hop', 'female vocalists', 'atmospheric', 'chill out']"
                                     'discogstags'  "['electronic', 'happy hardcore']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '1968'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '127.7'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         'http://garagetapes.blogspot.com/'
'TALB' (Album/Movie/Show title)                     "Tape No111 - Let's Live For Today"
'TBPM' (BPM (beats per minute))                     '127.7'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1968'
'TIT2' (Title/songname/content description)         'Look At The Lights Go Up'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hopscotch'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '18'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:country'                                      'UK'
'TXXX:discogstags'                                  ['electronic', 'happy hardcore']
'TXXX:lastfmtags'                                   ['trip-hop', 'female vocalists', 'atmospheric', 'chill out']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.60 dB'
'TXXX:replaygain_track_peak'                        '0.405769'
'TXXX:tracknum'                                     '18'

========================== row from database ==========================
                                              'id'  503934
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT111/18 - Hopscotch - Look At The Lights Go Up (1968 UK).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  136
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  3274762
                                           'mtime'  1620384355
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT111 18 (1968 UK) rock gr garage;set pl garagetapes
                                      'tag_artist'  Hopscotch
                                     'tag_release'  Tape No111 - Let's Live For Today
                                       'tag_title'  Look At The Lights Go Up
                                             'bpm'  127.7
                                    'search_title'  'at':2 'go':5 'lights':4 'look':1 'the':3 'up':6
                                   'search_artist'  'hopscotch':1
                                  'search_release'  'for':7 'let':3 'lets':5 'live':6 'no111':2 's':4 'tape':1 'today':8
                                     'search_rest'  '18':6 '1968':7,8 'blogspot':2 'com':3 'garage':13,15 'garagetapes':1,18 'garagetapesblogspotcom':4 'gr':12 'gt111':5 'pl':17 'rock':11 'set':14,16 'uk':9,10
                                    'search_combo'  '18':21 '1968':22,23 'at':2A 'blogspot':17 'com':18 'for':14C 'garage':28,30 'garagetapes':16,33 'garagetapesblogspotcom':19 'go':5A 'gr':27 'gt111':20 'hopscotch':7B 'let':10C 'lets':12C 'lights':4A 'live':13C 'look':1A 'no111':9C 'pl':32 'rock':26 's':11C 'set':29,31 'tape':8C 'the':3A 'today':15C 'uk':24,25 'up':6A
                                    '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-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['trip-hop', 'female vocalists', 'atmospheric', 'chill out']
                                        'tag_date'  1968
                                     'discogstags'  ['electronic', 'happy hardcore']

============================== file details ==============================
                                           'mtime'  1620384355.1092362  (2021-05-07 12:45:55)
                             'size'  3274762