======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '168'
                                          'artist'  'Muddy Waters'
                                     'text_people'  ''
                                         'release'  'The Ultimate Jazz Archive'
                                           'title'  'Little Geneva'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['delta blues', 'guitar', 'blues', 'chicago blues', 'classic blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1941'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '87.1'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '1941-1942'
'TALB' (Album/Movie/Show title)                     'The Ultimate Jazz Archive'
'TBPM' (BPM (beats per minute))                     '87.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '1941'
'TIT2' (Title/songname/content description)         'Little Geneva'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Muddy Waters'
'TPE2' (Band/orchestra/accompaniment)               'Muddy Waters'
'TPOS' (Part of a set)                              '14.2'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['delta blues', 'guitar', 'blues', 'chicago blues', 'classic blues']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+4.49 dB'
'TXXX:replaygain_track_peak'                        '0.585690'

========================== row from database ==========================
                                              'id'  1260828
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/14.2_Muddy Waters (1941-1942)/13_Little Geneva.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  168
                                           'genre'  prerock-jb-blues
                                        'filesize'  6734716
                                           'mtime'  1620402162
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 14.2_Muddy (1941 1942) 13_Little prerock jb blues
                                      'tag_artist'  Muddy Waters
                                     'tag_release'  The Ultimate Jazz Archive
                                       'tag_title'  Little Geneva
                                             'bpm'  87.1
                                    'search_title'  'geneva':2 'little':1
                                   'search_artist'  'muddy':1 'waters':2
                                  'search_release'  'archive':4 'jazz':3 'the':1 'ultimate':2
                                     'search_rest'  '13':14 '14':5 '142':8 '1941':10,11 '1942':12,13 '2':6 'blues':18 'country':4 'exotica':2 'jazz':1 'jb':17 'little':15 'muddy':7,9 'oldies':3 'prerock':16
                                    'search_combo'  '13':22 '14':13 '142':16 '1941':18,19 '1942':20,21 '2':14 'archive':8C 'blues':26 'country':12 'exotica':10 'geneva':2A 'jazz':7C,9 'jb':25 'little':1A,23 'muddy':3B,15,17 'oldies':11 'prerock':24 'the':5C 'ultimate':6C 'waters':4B
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['delta blues', 'guitar', 'blues', 'chicago blues', 'classic blues']
                                        'tag_date'  1941
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620402162.1571462  (2021-05-07 17:42:42)
                             'size'  6734716