======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '220'
                                          'artist'  'Al Bowlly/Ray Noble'
                                     'text_people'  ''
                                         'release'  'Al Bowlly'
                                           'title'  'I Never Had A Chance 2'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', '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-vocal'
                                             'bpm'  '121.848'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Al Bowlly'
'TBPM' (BPM (beats per minute))                     '121.848'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'I Never Had A Chance 2'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '220349'
'TPE1' (Lead performer(s)/Soloist(s))               'Al Bowlly/Ray Noble'
'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:lastfmtags'                                   ['jazz', '30s', 'oldies', 'crooner', 'british']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                        '+0.90 dB'
'TXXX:replaygain_track_peak'                        '0.488124'

========================== row from database ==========================
                                              'id'  1129987
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Al Bowlly, Ray Noble - I Never Had A Chance To.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  220
                                           'genre'  prerock-vocal
                                        'filesize'  3553280
                                           'mtime'  1620666339
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular Bowlly, To prerock vocal
                                      'tag_artist'  Al Bowlly/Ray Noble
                                     'tag_release'  Al Bowlly
                                       'tag_title'  I Never Had A Chance 2
                                             'bpm'  121.848
                                    'search_title'  '2':6 'a':4 'chance':5 'had':3 'i':1 'never':2
                                   'search_artist'  'al':1 'bowlly':2 'bowllyray':4 'noble':5 'ray':3
                                  'search_release'  'al':1 'bowlly':2
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':8 'and':7 'bowlly':10,11 'country':4 'exotica':2 'jazz':1 'oldies':3 'popular':9 'prerock':13 'to':12 'vocal':14
                                    'search_combo'  '00oldiepop':18 '1920s':19 '1930s':21 '2':6A 'a':4A 'al':7B,12C 'and':20 'bowlly':8B,13C,23,24 'bowllyray':10B 'chance':5A 'country':17 'exotica':15 'had':3A 'i':1A 'jazz':14 'never':2A 'noble':11B 'oldies':16 'popular':22 'prerock':26 'ray':9B 'to':25 'vocal':27
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             '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-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz', '30s', 'oldies', 'crooner', 'british']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666338.8083572  (2021-05-10 19:05:38)
                             'size'  3553280