======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '192'
                                          'artist'  'Victor Arden & Phil Ohman'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Isn't It A Pity"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-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-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['sweet jazz', 'big band']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1932'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '132.7'
                                             'key'  '9A'
                                        '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'
'TBPM' (BPM (beats per minute))                     '132.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1932-08-12'
'TIT2' (Title/songname/content description)         "Isn't It A Pity"
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '192000'
'TPE1' (Lead performer(s)/Soloist(s))               'Victor Arden & Phil Ohman'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['sweet jazz', 'big band']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.69 dB'
'TXXX:replaygain_track_peak'                        '0.807906'

========================== row from database ==========================
                                              'id'  1502084
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1932/Victor Arden & Phil Ohman - Isn_t It A Pity 12-8-1932.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  192
                                           'genre'  prerock-band
                                        'filesize'  3916069
                                           'mtime'  1620560008
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1932 Isn_t 12 8 1932 prerock band
                                      'tag_artist'  Victor Arden & Phil Ohman
                                     'tag_release'  None
                                       'tag_title'  Isn't It A Pity
                                             'bpm'  132.7
                                    'search_title'  'a':5 'isn':1 'isnt':3 'it':4 'pity':6 't':2
                                   'search_artist'  'arden':2 'ohman':4 'phil':3 'victor':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1932':6 '8':9 'band':11 'country':4 'exotica':2 'isn':7 'jazz':1 'oldies':3 'prerock':10 't':8
                                    'search_combo'  '00oldiepop':15 '1932':16 '8':19 'a':5A 'arden':8B 'band':21 'country':14 'exotica':12 'isn':1A,17 'isnt':3A 'it':4A 'jazz':11 'ohman':10B 'oldies':13 'phil':9B 'pity':6A 'prerock':20 't':2A,18 'victor':7B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['sweet jazz', 'big band']
                                        'tag_date'  1932
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560007.888929  (2021-05-09 13:33:27)
                             'size'  3916069