======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '194'
                                          'artist'  'Albert Campbell & Henry Burr'
                                     'text_people'  ''
                                         'release'  'Standard 1224 (38195)'
                                           'title'  "I'll Love You Sweetheart Sue"
                                           '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-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1912'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '142.2'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Standard 1224 (38195)'
'TBPM' (BPM (beats per minute))                     '142.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1912'
'TIT2' (Title/songname/content description)         "I'll Love You Sweetheart Sue"
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '194000'
'TPE1' (Lead performer(s)/Soloist(s))               'Albert Campbell & Henry Burr'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.59 dB'
'TXXX:replaygain_track_peak'                        '0.686806'

========================== row from database ==========================
                                              'id'  1504489
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1912/Albert Campbell & Henry Burr - I_ll Love You Sweetheart Sue 1912.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  194
                                           'genre'  prerock-vocal
                                        'filesize'  3980478
                                           'mtime'  1620666109
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1912 I_ll 1912 prerock vocal
                                      'tag_artist'  Albert Campbell & Henry Burr
                                     'tag_release'  Standard 1224 (38195)
                                       'tag_title'  I'll Love You Sweetheart Sue
                                             'bpm'  142.2
                                    'search_title'  'i':1 'ill':3 'll':2 'love':4 'sue':7 'sweetheart':6 'you':5
                                   'search_artist'  'albert':1 'burr':4 'campbell':2 'henry':3
                                  'search_release'  '1224':2 '38195':3,4 'standard':1
                                     'search_rest'  '00oldiepop':5 '1912':6 'country':4 'exotica':2 'i':7 'jazz':1 'll':8 'oldies':3 'prerock':9 'vocal':10
                                    'search_combo'  '00oldiepop':20 '1224':13C '1912':21 '38195':14C,15C 'albert':8B 'burr':11B 'campbell':9B 'country':19 'exotica':17 'henry':10B 'i':1A,22 'ill':3A 'jazz':16 'll':2A,23 'love':4A 'oldies':18 'prerock':24 'standard':12C 'sue':7A 'sweetheart':6A 'vocal':25 'you':5A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1912
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666108.6677978  (2021-05-10 19:01:48)
                             'size'  3980478