======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '640'
                                          'artist'  'Memphis  Slim'
                                     'text_people'  ''
                                         'release'  'Memphis Slim'
                                           'title'  'Long long boogie'
                                           'quals'  ("['Q-OLDST-1', 'Q-UNU-1', 'Q-HAP-2', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'q-syn-2', "
 "'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', "
 "'q-other-4', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'piano blues', 'classic blues', 'piano', 'memphis slim']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '97.365'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Memphis Slim'
'TBPM' (BPM (beats per minute))                     '97.365'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TIT2' (Title/songname/content description)         'Long long boogie'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Memphis  Slim'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'piano blues', 'classic blues', 'piano', 'memphis slim']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.13 dB'
'TXXX:replaygain_track_peak'                        '0.592725'

========================== row from database ==========================
                                              'id'  1287938
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Boogie woogie__Memphis  Slim__cifsf496.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  640
                                           'genre'  prerock-jb-blues
                                        'filesize'  12817506
                                           'mtime'  1620404519
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Boogie woogie__Memphis Slim__cifsf496 prerock jb blues
                                      'tag_artist'  Memphis  Slim
                                     'tag_release'  Memphis Slim
                                       'tag_title'  Long long boogie
                                             'bpm'  97.365
                                    'search_title'  'boogie':2 'long':1
                                   'search_artist'  'memphis':1 'slim':2
                                  'search_release'  'memphis':1 'slim':2
                                     'search_rest'  '00poprockelectronic':1 'blues':14 'boogie':7 'cifsf496':11 'files':5,6 'jb':13 'loose':3,4 'memphis':9 'prerock':12 'slim':10 'unsorted':2 'woogie':8
                                    'search_combo'  '00poprockelectronic':7 'blues':20 'boogie':2A,13 'cifsf496':17 'files':11,12 'jb':19 'long':1A 'loose':9,10 'memphis':3B,5C,15 'prerock':18 'slim':4B,6C,16 'unsorted':8 'woogie':14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'piano blues', 'classic blues', 'piano', 'memphis slim']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620404518.8665574  (2021-05-07 18:21:58)
                             'size'  12817506