======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '143'
                                          'artist'  'Billy Murray & Frederic Rose'
                                     'text_people'  ''
                                         'release'  'Victor  4765'
                                           'title'  "I've Said My Last Farewell"
                                           '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'  '1906'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '143.4'
                                             'key'  '6A'
                                        '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)                     'Victor  4765'
'TBPM' (BPM (beats per minute))                     '143.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1906'
'TIT2' (Title/songname/content description)         "I've Said My Last Farewell"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '143000'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Murray & Frederic Rose'
'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'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.407454'

========================== row from database ==========================
                                              'id'  1516480
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1906/Billy Murray & Frederic Rose - I_ve Said My Last Farewell 1906.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  143
                                           'genre'  prerock-vocal
                                        'filesize'  2909404
                                           'mtime'  1620665902
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1906 I_ve 1906 prerock vocal
                                      'tag_artist'  Billy Murray & Frederic Rose
                                     'tag_release'  Victor  4765
                                       'tag_title'  I've Said My Last Farewell
                                             'bpm'  143.4
                                    'search_title'  'farewell':7 'i':1 'ive':3 'last':6 'my':5 'said':4 've':2
                                   'search_artist'  'billy':1 'frederic':3 'murray':2 'rose':4
                                  'search_release'  '4765':2 'victor':1
                                     'search_rest'  '00oldiepop':5 '1906':6 'country':4 'exotica':2 'i':7 'jazz':1 'oldies':3 'prerock':9 've':8 'vocal':10
                                    'search_combo'  '00oldiepop':18 '1906':19 '4765':13C 'billy':8B 'country':17 'exotica':15 'farewell':7A 'frederic':10B 'i':1A,20 'ive':3A 'jazz':14 'last':6A 'murray':9B 'my':5A 'oldies':16 'prerock':22 'rose':11B 'said':4A 've':2A,21 'victor':12C 'vocal':23
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           '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'  1906
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620665901.784293  (2021-05-10 18:58:21)
                             'size'  2909404