======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '202'
                                          'artist'  'Wayne King & His Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'The Waltz You Saved For Me'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-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-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazzy easy', 'melodi', 'reading', 'sleepy', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1931'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '139.754'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 12/20/30+ and peaked at #4 on Various Charts. Source: Pop Memories'
'COMM:ID3v1 Comment:XXX'                            'Debuted 12/20/30+ and peaked'
'TBPM' (BPM (beats per minute))                     '139.754'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1931'
'TIT2' (Title/songname/content description)         'The Waltz You Saved For Me'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Wayne King & His Orchestra'
'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:lastfmtags'                                   ['jazzy easy', 'melodi', 'reading', 'sleepy', 'easy listening']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.70 dB'
'TXXX:replaygain_track_peak'                        '0.836270'

========================== row from database ==========================
                                              'id'  1455361
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/The waltz you saved for me - Wayne King and his orchestra (vocal by Ernie Burchill).mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  202
                                           'genre'  prerock-swing
                                        'filesize'  2031982
                                           'mtime'  1620560601
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 waltz you saved for me and his orchestra (vocal by Ernie Burchill) prerock swing
                                      'tag_artist'  Wayne King & His Orchestra
                                     'tag_release'  None
                                       'tag_title'  The Waltz You Saved For Me
                                             'bpm'  139.754
                                    'search_title'  'for':5 'me':6 'saved':4 'the':1 'waltz':2 'you':3
                                   'search_artist'  'his':3 'king':2 'orchestra':4 'wayne':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1934':6 'and':12 'burchill':19,20 'by':17 'country':4 'ernie':18 'exotica':2 'for':10 'his':13 'jazz':1 'me':11 'oldies':3 'orchestra':14 'prerock':21 'saved':9 'swing':22 'vocal':15,16 'waltz':7 'you':8
                                    'search_combo'  '00oldiepop':15 '1934':16 'and':22 'burchill':29,30 'by':27 'country':14 'ernie':28 'exotica':12 'for':5A,20 'his':9B,23 'jazz':11 'king':8B 'me':6A,21 'oldies':13 'orchestra':10B,24 'prerock':31 'saved':4A,19 'swing':32 'the':1A 'vocal':25,26 'waltz':2A,17 'wayne':7B 'you':3A,18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           '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-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['jazzy easy', 'melodi', 'reading', 'sleepy', 'easy listening']
                                        'tag_date'  1931
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560600.867679  (2021-05-09 13:43:20)
                             'size'  2031982