======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '188'
                                          'artist'  'Al Bowlly/Lew Stone & His Orchestra'
                                     'text_people'  ''
                                         'release'  'Lew Stone Duriam Dance Band,'
                                           'title'  'Experiment'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', '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-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', '30s', 'oldies', 'crooner', 'british']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '130.482'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Lew Stone Duriam Dance Band,'
'TBPM' (BPM (beats per minute))                     '130.482'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Experiment'
'TKEY' (Initial key)                                '7B'
'TLEN' (Length)                                     '188094'
'TPE1' (Lead performer(s)/Soloist(s))               'Al Bowlly/Lew Stone & 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'                                   ['jazz', '30s', 'oldies', 'crooner', 'british']
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.60 dB'
'TXXX:replaygain_track_peak'                        '0.594995'

========================== row from database ==========================
                                              'id'  1150415
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Lew Stone Duriam Dance Band, Al Bowlly - Experiment 1933.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  188
                                           'genre'  prerock-swing
                                        'filesize'  3035175
                                           'mtime'  1620559659
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s popular 1933 prerock swing
                                      'tag_artist'  Al Bowlly/Lew Stone & His Orchestra
                                     'tag_release'  Lew Stone Duriam Dance Band,
                                       'tag_title'  Experiment
                                             'bpm'  130.482
                                    'search_title'  'experiment':1
                                   'search_artist'  'al':1 'bowlly':2 'bowllylew':4 'his':6 'lew':3 'orchestra':7 'stone':5
                                  'search_release'  'band':5,6 'dance':4 'duriam':3 'lew':1 'stone':2
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 '1933':9 'country':4 'exotica':2 'jazz':1 'oldies':3 'popular':8 'prerock':10 'swing':11
                                    'search_combo'  '00oldiepop':19 '1920s':20 '1930s':21 '1933':23 'al':2B 'band':13C,14C 'bowlly':3B 'bowllylew':5B 'country':18 'dance':12C 'duriam':11C 'exotica':16 'experiment':1A 'his':7B 'jazz':15 'lew':4B,9C 'oldies':17 'orchestra':8B 'popular':22 'prerock':24 'stone':6B,10C 'swing':25
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7B
                                           '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-4', 'q-grit-1']
                                      'lastfmtags'  ['jazz', '30s', 'oldies', 'crooner', 'british']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620559659.1388981  (2021-05-09 13:27:39)
                             'size'  3035175