======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '204'
                                          'artist'  'Revelers'
                                     'text_people'  ''
                                         'release'  'Billboard 1928'
                                           'title'  'Among My Souvenirs'
                                           '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock', 'indie', 'pop rock', 'pop-rock', 'double-ender 22']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '107'
                                      'tracktotal'  ''
                                            'date'  '1928'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '135.910'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 1928 and peaked at #10 on Various Charts. Source: Pop Memories'
'COMM:ID3v1 Comment:XXX'                            'Debuted 1928 and peaked at #'
'TALB' (Album/Movie/Show title)                     'Billboard 1928'
'TBPM' (BPM (beats per minute))                     '135.910'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1928'
'TIT2' (Title/songname/content description)         'Among My Souvenirs'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Revelers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '107'
'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:lastfmtags'                                   ['rock', 'indie', 'pop rock', 'pop-rock', 'double-ender 22']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.07 dB'
'TXXX:replaygain_track_peak'                        '0.630529'

========================== row from database ==========================
                                              'id'  978550
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Billboard 1928/1928_107 - Revelers - Among My Souvenirs 128 JS (3.24).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  204
                                           'genre'  prerock-unsorted
                                        'filesize'  3270656
                                           'mtime'  1621697508
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1928_107 128 JS (3.24) prerock unsorted
                                      'tag_artist'  Revelers
                                     'tag_release'  Billboard 1928
                                       'tag_title'  Among My Souvenirs
                                             'bpm'  135.91
                                    'search_title'  'among':1 'my':2 'souvenirs':3
                                   'search_artist'  'revelers':1
                                  'search_release'  '1928':2 'billboard':1
                                     'search_rest'  '107':6 '128':7 '1928':5 '24':10 '3':9 '324':11 'country':4 'exotica':2 'jazz':1 'js':8 'oldies':3 'prerock':12 'unsorted':13
                                    'search_combo'  '107':12 '128':13 '1928':6C,11 '24':16 '3':15 '324':17 'among':1A 'billboard':5C 'country':10 'exotica':8 'jazz':7 'js':14 'my':2A 'oldies':9 'prerock':18 'revelers':4B 'souvenirs':3A 'unsorted':19
                                    'tag_tracknum'  107
                                      'num_images'  0
                                             'key'  6A
                                           '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-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['rock', 'indie', 'pop rock', 'pop-rock', 'double-ender 22']
                                        'tag_date'  1928
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697507.7351434  (2021-05-22 17:31:47)
                             'size'  3270656