======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '195'
                                          'artist'  'Paul Whiteman & His Orchestra Feat. Bing Crosby'
                                     'text_people'  ''
                                         'release'  'Billboard 1928'
                                           'title'  'It Was The Dawn Of Love'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '229'
                                      'tracktotal'  ''
                                            'date'  '1928'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '97.647'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 1928 and peaked at #19 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))                     '97.647'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1928'
'TIT2' (Title/songname/content description)         'It Was The Dawn Of Love'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Paul Whiteman & His Orchestra Feat. Bing Crosby'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '229'
'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:q-bass'                                       '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.32 dB'
'TXXX:replaygain_track_peak'                        '0.804675'

========================== row from database ==========================
                                              'id'  978355
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Billboard 1928/1928_229 - Paul Whiteman & His Orchestra Feat. Bing Crosby - It Was The Dawn Of Love 96 M (3.15).mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  195
                                           'genre'  prerock-swing
                                        'filesize'  2346880
                                           'mtime'  1620562710
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1928_229 96 M (3.15) prerock swing
                                      'tag_artist'  Paul Whiteman & His Orchestra Feat. Bing Crosby
                                     'tag_release'  Billboard 1928
                                       'tag_title'  It Was The Dawn Of Love
                                             'bpm'  97.647
                                    'search_title'  'dawn':4 'it':1 'love':6 'of':5 'the':3 'was':2
                                   'search_artist'  'bing':7 'crosby':8 'feat':5,6 'his':3 'orchestra':4 'paul':1 'whiteman':2
                                  'search_release'  '1928':2 'billboard':1
                                     'search_rest'  '15':10 '1928':5 '229':6 '3':9 '315':11 '96':7 'country':4 'exotica':2 'jazz':1 'm':8 'oldies':3 'prerock':12 'swing':13
                                    'search_combo'  '15':26 '1928':16C,21 '229':22 '3':25 '315':27 '96':23 'billboard':15C 'bing':13B 'country':20 'crosby':14B 'dawn':4A 'exotica':18 'feat':11B,12B 'his':9B 'it':1A 'jazz':17 'love':6A 'm':24 'of':5A 'oldies':19 'orchestra':10B 'paul':7B 'prerock':28 'swing':29 'the':3A 'was':2A 'whiteman':8B
                                    'tag_tracknum'  229
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1928
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562710.4996445  (2021-05-09 14:18:30)
                             'size'  2346880