======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '259'
                                          'artist'  'Billy Murray & Ada Jones & Chorus'
                                     'text_people'  ''
                                         'release'  'Edison Amberol Special G'
                                           'title'  "I'm Looking For A Sweetheart 1909 Edison long version"
                                           '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1909'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '133.8'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TALB' (Album/Movie/Show title)                     'Edison Amberol Special G'
'TBPM' (BPM (beats per minute))                     '133.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1909'
'TIT2' (Title/songname/content description)         "I'm Looking For A Sweetheart 1909 Edison long version"
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Murray & Ada Jones & Chorus'
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.65 dB'
'TXXX:replaygain_track_peak'                        '0.725997'

========================== row from database ==========================
                                              'id'  1503654
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1909/Billy Murray & Ada Jones - I_m Looking For A Sweetheart 1909 Edison long version + Chorus.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  259
                                           'genre'  prerock-vocal
                                        'filesize'  5225474
                                           'mtime'  1620665994
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop I_m + prerock vocal
                                      'tag_artist'  Billy Murray & Ada Jones & Chorus
                                     'tag_release'  Edison Amberol Special G
                                       'tag_title'  I'm Looking For A Sweetheart 1909 Edison long version
                                             'bpm'  133.8
                                    'search_title'  '1909':8 'a':6 'edison':9 'for':5 'i':1 'im':3 'long':10 'looking':4 'm':2 'sweetheart':7 'version':11
                                   'search_artist'  'ada':3 'billy':1 'chorus':5 'jones':4 'murray':2
                                  'search_release'  'amberol':2 'edison':1 'g':4 'special':3
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'i':6 'jazz':1 'm':7 'oldies':3 'prerock':8 'vocal':9
                                    'search_combo'  '00oldiepop':25 '1909':8A 'a':6A 'ada':14B 'amberol':18C 'billy':12B 'chorus':16B 'country':24 'edison':9A,17C 'exotica':22 'for':5A 'g':20C 'i':1A,26 'im':3A 'jazz':21 'jones':15B 'long':10A 'looking':4A 'm':2A,27 'murray':13B 'oldies':23 'prerock':28 'special':19C 'sweetheart':7A 'version':11A 'vocal':29
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           '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-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1909
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620665994.1596177  (2021-05-10 18:59:54)
                             'size'  5225474