======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '120'
                                          'artist'  'John W Myers'
                                     'text_people'  ''
                                         'release'  'Columbia 31879'
                                           'title'  'In The Good Old Summertime'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', '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']")
                                      'lastfmtags'  "['all']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1902'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '129.2'
                                             'key'  '7B'
                                        '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)                     'Columbia 31879'
'TBPM' (BPM (beats per minute))                     '129.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1902-08'
'TIT2' (Title/songname/content description)         'In The Good Old Summertime'
'TKEY' (Initial key)                                '7B'
'TLEN' (Length)                                     '120000'
'TPE1' (Lead performer(s)/Soloist(s))               'John W Myers'
'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'                                   'all'
'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'                        '+0.40 dB'
'TXXX:replaygain_track_peak'                        '0.440114'

========================== row from database ==========================
                                              'id'  1465459
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1902/John W Myers - In The Good Old Summer Time -8-1902.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  120
                                           'genre'  prerock-band
                                        'filesize'  2454322
                                           'mtime'  1620558435
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1902 Time 1902 prerock band
                                      'tag_artist'  John W Myers
                                     'tag_release'  Columbia 31879
                                       'tag_title'  In The Good Old Summertime
                                             'bpm'  129.2
                                    'search_title'  'good':3 'in':1 'old':4 'summertime':5 'the':2
                                   'search_artist'  'john':1 'myers':3 'w':2
                                  'search_release'  '31879':2 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1902':6 'band':9 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'time':7
                                    'search_combo'  '00oldiepop':15 '1902':16 '31879':10C 'band':19 'columbia':9C 'country':14 'exotica':12 'good':3A 'in':1A 'jazz':11 'john':6B 'myers':8B 'old':4A 'oldies':13 'prerock':18 'summertime':5A 'the':2A 'time':17 'w':7B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7B
                                           '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-2', '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'  ['all']
                                        'tag_date'  1902
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620558435.1140337  (2021-05-09 13:07:15)
                             'size'  2454322