======================== unified (from filesystem) ========================
                                         'bitrate'  '64.0'
                                        'duration'  '191'
                                          'artist'  'Moran & Mack'
                                     'text_people'  ''
                                         'release'  'Billboard 1928'
                                           'title'  'Two Black Crows Part 6 (Curiosities on the Farm)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '064b'
                                      'tracktotal'  ''
                                            'date'  '1928'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '122.585'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Billboard 1928'
'TBPM' (BPM (beats per minute))                     '122.585'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1928'
'TIT2' (Title/songname/content description)         'Two Black Crows Part 6 (Curiosities on the Farm)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Moran & Mack'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '064b'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.66 dB'
'TXXX:replaygain_track_peak'                        '0.510691'

========================== row from database ==========================
                                              'id'  978298
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Billboard 1928/1928_064b - Moran & Mack - Two Black Crows Part 6 (Curiosities On The Farm), 1928.mp3
                                         'working'  None
                                         'bitrate'  64
                                    'duration_sec'  191
                                           'genre'  prerock-unsorted
                                        'filesize'  1531600
                                           'mtime'  1621697507
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1928_064b On The Farm), prerock unsorted
                                      'tag_artist'  Moran & Mack
                                     'tag_release'  Billboard 1928
                                       'tag_title'  Two Black Crows Part 6 (Curiosities on the Farm)
                                             'bpm'  122.585
                                    'search_title'  '6':5 'black':2 'crows':3 'curiosities':6,7 'farm':10,11 'on':8 'part':4 'the':9 'two':1
                                   'search_artist'  'mack':2 'moran':1
                                  'search_release'  '1928':2 'billboard':1
                                     'search_rest'  '064b':6 '1928':5 'country':4 'exotica':2 'farm':9,10 'jazz':1 'oldies':3 'on':7 'prerock':11 'the':8 'unsorted':12
                                    'search_combo'  '064b':21 '1928':15C,20 '6':5A 'billboard':14C 'black':2A 'country':19 'crows':3A 'curiosities':6A,7A 'exotica':17 'farm':10A,11A,24,25 'jazz':16 'mack':13B 'moran':12B 'oldies':18 'on':8A,22 'part':4A 'prerock':26 'the':9A,23 'two':1A 'unsorted':27
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1928
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697507.4121222  (2021-05-22 17:31:47)
                             'size'  1531600