======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '201'
                                          'artist'  'Coon-Sanders Nighthawks'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Southology (Joe Sanders pno solo)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-vocals-1', 'q-mixbeat-1', "
 "'Q-PIANO-4']")
                                      'lastfmtags'  "['1920s', 'jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1932'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '135.1'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '135.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1932-03-09'
'TIT2' (Title/songname/content description)         'Southology (Joe Sanders pno solo)'
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '201000'
'TPE1' (Lead performer(s)/Soloist(s))               'Coon-Sanders Nighthawks'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['1920s', 'jazz']
'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'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.69 dB'
'TXXX:replaygain_track_peak'                        '0.926588'

========================== row from database ==========================
                                              'id'  1463246
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1932/Coon-Sanders Nighthawks - Southology (Joe Sanders pno solo) 9-3-1932.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  201
                                           'genre'  prerock-swing
                                        'filesize'  4076457
                                           'mtime'  1620573918
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1932 9 3 1932 prerock swing
                                      'tag_artist'  Coon-Sanders Nighthawks
                                     'tag_release'  None
                                       'tag_title'  Southology (Joe Sanders pno solo)
                                             'bpm'  135.1
                                    'search_title'  'joe':2,3 'pno':5 'sanders':4 'solo':6,7 'southology':1
                                   'search_artist'  'coon':1 'coonsanders':3 'nighthawks':4 'sanders':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1932':6 '3':8 '9':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'swing':10
                                    'search_combo'  '00oldiepop':16 '1932':17 '3':19 '9':18 'coon':8B 'coonsanders':10B 'country':15 'exotica':13 'jazz':12 'joe':2A,3A 'nighthawks':11B 'oldies':14 'pno':5A 'prerock':20 'sanders':4A,9B 'solo':6A,7A 'southology':1A 'swing':21
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['1920s', 'jazz']
                                        'tag_date'  1932
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573918.4491098  (2021-05-09 17:25:18)
                             'size'  4076457