======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '185'
                                          'artist'  'Seger Ellis'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Ain't Misbehavin' (+ Louis Armstrong) 26-8-1929"
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'piano', 'jazz', 'american', 'lesser known yet streamable artists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1929'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '116.0'
                                             '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'
'TBPM' (BPM (beats per minute))                     '116.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1929'
'TIT2' (Title/songname/content description)         "Ain't Misbehavin' (+ Louis Armstrong) 26-8-1929"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '185000'
'TPE1' (Lead performer(s)/Soloist(s))               'Seger Ellis'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'piano', 'jazz', 'american', 'lesser known yet streamable artists']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+1.77 dB'
'TXXX:replaygain_track_peak'                        '0.989658'

========================== row from database ==========================
                                              'id'  1496643
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1929/Seger Ellis - Ain_t Misbehavin_ (+ Louis Armstrong) 26-8-1929.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  185
                                           'genre'  prerock-unsorted
                                        'filesize'  3797097
                                           'mtime'  1620385831
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop Ain_t Misbehavin_ prerock unsorted
                                      'tag_artist'  Seger Ellis
                                     'tag_release'  None
                                       'tag_title'  Ain't Misbehavin' (+ Louis Armstrong) 26-8-1929
                                             'bpm'  116.0
                                    'search_title'  '1929':11 '26':9 '2681929':12 '8':10 'ain':1 'aint':3 'armstrong':7,8 'louis':6 'misbehavin':4,5 't':2
                                   'search_artist'  'ellis':2 'seger':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 'ain':6 'country':4 'exotica':2 'jazz':1 'misbehavin':8 'oldies':3 'prerock':9 't':7 'unsorted':10
                                    'search_combo'  '00oldiepop':19 '1929':11A '26':9A '2681929':12A '8':10A 'ain':1A,20 'aint':3A 'armstrong':7A,8A 'country':18 'ellis':14B 'exotica':16 'jazz':15 'louis':6A 'misbehavin':4A,5A,22 'oldies':17 'prerock':23 'seger':13B 't':2A,21 'unsorted':24
                                    '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-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['blues', 'piano', 'jazz', 'american', 'lesser known yet streamable artists']
                                        'tag_date'  1929
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385830.7255883  (2021-05-07 13:10:30)
                             'size'  3797097