======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '190'
                                          'artist'  'Syd Lipton'
                                     'text_people'  ''
                                         'release'  'Columbia FB  2447'
                                           'title'  "This Year's Roses (vocal - Celia Lipton)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1940'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-female'
                                             'bpm'  '119.546'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Columbia FB  2447'
'TBPM' (BPM (beats per minute))                     '119.546'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-female'
'TDRC' (Recording time)                             '1940'
'TIT2' (Title/songname/content description)         "This Year's Roses (vocal - Celia Lipton)"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Syd Lipton'
'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'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.37 dB'
'TXXX:replaygain_track_peak'                        '0.547911'

========================== row from database ==========================
                                              'id'  1511481
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1940/Syd Lipton - This Year_s Roses (vocal - Celia Lipton) 29-5-1940.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  190
                                           'genre'  prerock-vocal-female
                                        'filesize'  3815218
                                           'mtime'  1621625746
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1940 Year_s 29 5 1940 prerock female
                                      'tag_artist'  Syd Lipton
                                     'tag_release'  Columbia FB  2447
                                       'tag_title'  This Year's Roses (vocal - Celia Lipton)
                                             'bpm'  119.546
                                    'search_title'  'celia':8 'lipton':9,10 'roses':5 's':3 'this':1 'vocal':6,7 'year':2 'years':4
                                   'search_artist'  'lipton':2 'syd':1
                                  'search_release'  '2447':3 'columbia':1 'fb':2
                                     'search_rest'  '00oldiepop':5 '1940':6 '29':9 '5':10 'country':4 'exotica':2 'female':12 'jazz':1 'oldies':3 'prerock':11 's':8 'year':7
                                    'search_combo'  '00oldiepop':20 '1940':21 '2447':15C '29':24 '5':25 'celia':8A 'columbia':13C 'country':19 'exotica':17 'fb':14C 'female':27 'jazz':16 'lipton':9A,10A,12B 'oldies':18 'prerock':26 'roses':5A 's':3A,23 'syd':11B 'this':1A 'vocal':6A,7A 'year':2A,22 'years':4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1940
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625746.2181172  (2021-05-21 21:35:46)
                             'size'  3815218