======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '228'
                                          'artist'  'LOU CHILA FRESCA'
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  'I WONDER IF U STILL CARE 4 ME '
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1921'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '127.444'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '20s and 30s popular'
'TBPM' (BPM (beats per minute))                     '127.444'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TCOP' (Copyright message)                          'See collection restrictions statement'
'TDRC' (Recording time)                             '1921'
'TIT2' (Title/songname/content description)         'I WONDER IF U STILL CARE 4 ME '
'TKEY' (Initial key)                                '8B'
'TLEN' (Length)                                     '228612'
'TPE1' (Lead performer(s)/Soloist(s))               'LOU CHILA FRESCA'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.10 dB'
'TXXX:replaygain_track_peak'                        '0.501609'

========================== row from database ==========================
                                              'id'  1135858
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Lou Chila Fresca - I wonder If You Still Care For Me 1921 Edison Cylindar.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  228
                                           'genre'  prerock-unsorted
                                        'filesize'  3329564
                                           'mtime'  1621697877
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s Lou Chila Fresca wonder If You Still Care For Me 1921 Edison Cylindar prerock unsorted
                                      'tag_artist'  LOU CHILA FRESCA
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  I WONDER IF U STILL CARE 4 ME 
                                             'bpm'  127.444
                                    'search_title'  '4':7 'care':6 'i':1 'if':3 'me':8 'still':5 'u':4 'wonder':2
                                   'search_artist'  'chila':2 'fresca':3 'lou':1
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1921':18 '1930s':7 'care':15 'chila':9 'country':4 'cylindar':20 'edison':19 'exotica':2 'for':16 'fresca':10 'if':12 'jazz':1 'lou':8 'me':17 'oldies':3 'prerock':21 'still':14 'unsorted':22 'wonder':11 'you':13
                                    'search_combo'  '00oldiepop':20 '1920s':21 '1921':33 '1930s':22 '20s':12C '30s':14C '4':7A 'and':13C 'care':6A,30 'chila':10B,24 'country':19 'cylindar':35 'edison':34 'exotica':17 'for':31 'fresca':11B,25 'i':1A 'if':3A,27 'jazz':16 'lou':9B,23 'me':8A,32 'oldies':18 'popular':15C 'prerock':36 'still':5A,29 'u':4A 'unsorted':37 'wonder':2A,26 'you':28
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1921
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697876.83247  (2021-05-22 17:37:56)
                             'size'  3329564