======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '353'
                                          'artist'  'Jay Wilbur'
                                     'text_people'  ''
                                         'release'  'Rex  9125'
                                           'title'  'Shall We Dance Selection Part 1 & 2 (vocal - Sam Costa & Rhythm Brothers)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', '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-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['united kingdom', 'spotify', 'all', 'uk']"
                                     'discogstags'  "['jazz', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '99.031'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Rex  9125'
'TBPM' (BPM (beats per minute))                     '99.031'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1937'
'TIT2' (Title/songname/content description)         'Shall We Dance Selection Part 1 & 2 (vocal - Sam Costa & Rhythm Brothers)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jay Wilbur'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'pop']
'TXXX:lastfmtags'                                   ['united kingdom', 'spotify', 'all', 'uk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.99 dB'
'TXXX:replaygain_track_peak'                        '0.466781'

========================== row from database ==========================
                                              'id'  1427151
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1937/Jay Wilbur - Shall We Dance Selection Part 1 & 2 (vocal - Sam Costa & Rhythm Brothers) 6-9-1937.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  353
                                           'genre'  prerock-swing
                                        'filesize'  7067442
                                           'mtime'  1620561110
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1937 6 1937 prerock swing
                                      'tag_artist'  Jay Wilbur
                                     'tag_release'  Rex  9125
                                       'tag_title'  Shall We Dance Selection Part 1 & 2 (vocal - Sam Costa & Rhythm Brothers)
                                             'bpm'  99.031
                                    'search_title'  '1':6 '2':7 'brothers':13,14 'costa':11 'dance':3 'part':5 'rhythm':12 'sam':10 'selection':4 'shall':1 'vocal':8,9 'we':2
                                   'search_artist'  'jay':1 'wilbur':2
                                  'search_release'  '9125':2 'rex':1
                                     'search_rest'  '00oldiepop':5 '1937':6 '6':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'swing':9
                                    'search_combo'  '00oldiepop':23 '1':6A '1937':24 '2':7A '6':25 '9125':18C 'brothers':13A,14A 'costa':11A 'country':22 'dance':3A 'exotica':20 'jay':15B 'jazz':19 'oldies':21 'part':5A 'prerock':26 'rex':17C 'rhythm':12A 'sam':10A 'selection':4A 'shall':1A 'swing':27 'vocal':8A,9A 'we':2A 'wilbur':16B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['united kingdom', 'spotify', 'all', 'uk']
                                        'tag_date'  1937
                                     'discogstags'  ['jazz', 'pop']

============================== file details ==============================
                                           'mtime'  1620561109.510373  (2021-05-09 13:51:49)
                             'size'  7067442