======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '191'
                                          'artist'  'Collins & Harlan'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Oh You Circus Day'
                                           '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-2', '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-ragtime'
                                             'bpm'  '98.4'
                                             '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)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '98.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-ragtime'
'TDRC' (Recording time)                             '1912-05-10'
'TIT2' (Title/songname/content description)         'Oh You Circus Day'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '191000'
'TPE1' (Lead performer(s)/Soloist(s))               'Collins & Harlan'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+1.54 dB'
'TXXX:replaygain_track_peak'                        '0.659045'

========================== row from database ==========================
                                              'id'  1468513
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1912/Collins & Harlan - Oh You Circus Day 10-5-1912.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  191
                                           'genre'  prerock-ragtime
                                        'filesize'  3901357
                                           'mtime'  1620526600
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1912 10 5 1912 prerock ragtime
                                      'tag_artist'  Collins & Harlan
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Oh You Circus Day
                                             'bpm'  98.4
                                    'search_title'  'circus':3 'day':4 'oh':1 'you':2
                                   'search_artist'  'collins':1 'harlan':2
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1912':6 '5':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'ragtime':9
                                    'search_combo'  '00oldiepop':16 '1912':17 '5':18 'album':8C 'circus':3A 'collins':5B 'country':15 'day':4A 'exotica':13 'harlan':6B 'jazz':12 'non':7C 'nonalbum':9C 'oh':1A 'oldies':14 'prerock':19 'ragtime':20 'tracks':10C,11C 'you':2A
                                    '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-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['q-vocals-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                        'tag_date'  1912
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526600.174075  (2021-05-09 04:16:40)
                             'size'  3901357