======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '159'
                                          'artist'  'MC5'
                                     'text_people'  ''
                                         'release'  'Tape No043 - Mean Woman'
                                           'title'  "I Just Don't Know"
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['garage rock', 'proto punk', 'punk', 'rock', 'hard rock', 'classic rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '140.4'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Tape No043 - Mean Woman'
'TBPM' (BPM (beats per minute))                     '140.4'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         "I Just Don't Know"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'MC5'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '13'
'TXXX:COUNTRY'                                      '- US'
'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:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['garage rock', 'proto punk', 'punk', 'rock', 'hard rock', 'classic rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+23.97 dB'
'TXXX:replaygain_track_peak'                        '0.015287'
'TXXX:tracknum'                                     '13'

========================== row from database ==========================
                                              'id'  1502900
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT043/13 - MC5 -  I Just Don_t Know (1969 - US).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  159
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  3821362
                                           'mtime'  1620383095
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT043 13 Don_t (1969 US) rock gr garage;set pl garagetapes
                                      'tag_artist'  MC5
                                     'tag_release'  Tape No043 - Mean Woman
                                       'tag_title'  I Just Don't Know
                                             'bpm'  140.4
                                    'search_title'  'don':3 'dont':5 'i':1 'just':2 'know':6 't':4
                                   'search_artist'  'mc5':1
                                  'search_release'  'mean':3 'no043':2 'tape':1 'woman':4
                                     'search_rest'  '1969':8,9 'blogspot':2 'com':3 'don':6 'garage':14,16 'garagetapes':1,19 'garagetapesblogspotcom':4 'gr':13 'gt043':5 'pl':18 'rock':12 'set':15,17 't':7 'us':10,11
                                    'search_combo'  '1969':19,20 'blogspot':13 'com':14 'don':3A,17 'dont':5A 'garage':25,27 'garagetapes':12,30 'garagetapesblogspotcom':15 'gr':24 'gt043':16 'i':1A 'just':2A 'know':6A 'mc5':7B 'mean':10C 'no043':9C 'pl':29 'rock':23 'set':26,28 't':4A,18 'tape':8C 'us':21,22 'woman':11C
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  6A
                                           '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-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['garage rock', 'proto punk', 'punk', 'rock', 'hard rock', 'classic rock']
                                        'tag_date'  1969
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620383095.2709827  (2021-05-07 12:24:55)
                             'size'  3821362