======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '157'
                                          'artist'  'Syd Roy RKOlians'
                                     'text_people'  ''
                                         'release'  'Eclipse  424'
                                           'title'  'Who Is To Blame (vocal - Ivor Moreton)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1933'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '114.868'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Eclipse  424'
'TBPM' (BPM (beats per minute))                     '114.868'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1933'
'TIT2' (Title/songname/content description)         'Who Is To Blame (vocal - Ivor Moreton)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Syd Roy RKOlians'
'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'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.73 dB'
'TXXX:replaygain_track_peak'                        '0.656900'

========================== row from database ==========================
                                              'id'  1440293
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1933/Syd Roy RKOlians - Who Is To Blame (vocal - Ivor Moreton) 9-5-1933.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  157
                                           'genre'  prerock-unsorted
                                        'filesize'  3153714
                                           'mtime'  1621697964
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1933 9 5 1933 prerock unsorted
                                      'tag_artist'  Syd Roy RKOlians
                                     'tag_release'  Eclipse  424
                                       'tag_title'  Who Is To Blame (vocal - Ivor Moreton)
                                             'bpm'  114.868
                                    'search_title'  'blame':4 'is':2 'ivor':7 'moreton':8,9 'to':3 'vocal':5,6 'who':1
                                   'search_artist'  'rkolians':3 'roy':2 'syd':1
                                  'search_release'  '424':2 'eclipse':1
                                     'search_rest'  '00oldiepop':5 '1933':6 '5':8 '9':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':19 '1933':20 '424':14C '5':22 '9':21 'blame':4A 'country':18 'eclipse':13C 'exotica':16 'is':2A 'ivor':7A 'jazz':15 'moreton':8A,9A 'oldies':17 'prerock':23 'rkolians':12B 'roy':11B 'syd':10B 'to':3A 'unsorted':24 'vocal':5A,6A 'who':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1933
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697963.5816798  (2021-05-22 17:39:23)
                             'size'  3153714