======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '194'
                                          'artist'  'Peerless Quartet'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  "There's A Quaker Down In Quaker Town"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', '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'  "['spotify', 'all', 'cpdp', 'minstrel', 'acoustic era']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1916'
                                        'comments'  ''
                                           'genre'  'prerock-minstrel'
                                             'bpm'  '90.0'
                                             'key'  '7A'
                                        '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))                     '90.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-minstrel'
'TDRC' (Recording time)                             '1916-07-29'
'TIT2' (Title/songname/content description)         "There's A Quaker Down In Quaker Town"
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '194000'
'TPE1' (Lead performer(s)/Soloist(s))               'Peerless Quartet'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['spotify', 'all', 'cpdp', 'minstrel', 'acoustic era']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'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'                        '+0.90 dB'
'TXXX:replaygain_track_peak'                        '0.684532'

========================== row from database ==========================
                                              'id'  1509261
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1916/Peerless Quartet - There_s A Quaker Down In Quaker Town 29-7-1916.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  194
                                           'genre'  prerock-minstrel
                                        'filesize'  4036866
                                           'mtime'  1642095521
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1916 There_s 29 7 1916 prerock minstrel
                                      'tag_artist'  Peerless Quartet
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  There's A Quaker Down In Quaker Town
                                             'bpm'  90.0
                                    'search_title'  'a':4 'down':6 'in':7 'quaker':5 's':2 'there':1 'theres':3 'town':8
                                   'search_artist'  'peerless':1 'quartet':2
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1916':6 '29':9 '7':10 'country':4 'exotica':2 'jazz':1 'minstrel':12 'oldies':3 'prerock':11 's':8 'there':7
                                    'search_combo'  '00oldiepop':20 '1916':21 '29':24 '7':25 'a':4A 'album':12C 'country':19 'down':6A 'exotica':17 'in':7A 'jazz':16 'minstrel':27 'non':11C 'nonalbum':13C 'oldies':18 'peerless':9B 'prerock':26 'quaker':5A 'quartet':10B 's':2A,23 'there':1A,22 'theres':3A 'town':8A 'tracks':14C,15C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', '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'  ['spotify', 'all', 'cpdp', 'minstrel', 'acoustic era']
                                        'tag_date'  1916
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642095521.0380323  (2022-01-13 18:38:41)
                             'size'  4036866