======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '131'
                                          'artist'  'King Oliver'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Mandy Lee Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['dixieland', 'jazz', 'early jazz', 'new orleans', 'new orleans jazz', "
 "'dixieland jazz']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1923'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-dixiestyle'
                                             'bpm'  '89.0'
                                             'key'  '8A'
                                        '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))                     '89.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-dixiestyle'
'TDRC' (Recording time)                             '1923-04-06'
'TIT2' (Title/songname/content description)         'Mandy Lee Blues'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '131000'
'TPE1' (Lead performer(s)/Soloist(s))               'King Oliver'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dixieland',
 'jazz',
 'early jazz',
 'new orleans',
 'new orleans jazz',
 'dixieland jazz']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.61 dB'
'TXXX:replaygain_track_peak'                        '0.685524'

========================== row from database ==========================
                                              'id'  1460471
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1923/King Oliver - Mandy Lee Blues 6-4-1923.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  131
                                           'genre'  prerock-jb-jazz-o-dixiestyle
                                        'filesize'  2750812
                                           'mtime'  1620525335
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1923 6 4 1923 prerock jb jazz o dixiestyle
                                      'tag_artist'  King Oliver
                                     'tag_release'  None
                                       'tag_title'  Mandy Lee Blues
                                             'bpm'  89.0
                                    'search_title'  'blues':3 'lee':2 'mandy':1
                                   'search_artist'  'king':1 'oliver':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1923':6 '4':8 '6':7 'country':4 'dixiestyle':12 'exotica':2 'jazz':1 'jb':10 'o':11 'oldies':3 'prerock':9
                                    'search_combo'  '00oldiepop':10 '1923':11 '4':13 '6':12 'blues':3A 'country':9 'dixiestyle':17 'exotica':7 'jazz':6 'jb':15 'king':4B 'lee':2A 'mandy':1A 'o':16 'oldies':8 'oliver':5B 'prerock':14
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['dixieland', 'jazz', 'early jazz', 'new orleans', 'new orleans jazz', 'dixieland jazz']
                                        'tag_date'  1923
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525334.846449  (2021-05-09 03:55:34)
                             'size'  2750812