======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '190'
                                          'artist'  'rhythm boys'
                                     'text_people'  ''
                                         'release'  'fuk  RIAA'
                                           'title'  "i'm on the crest of a wave"
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'swing', 'hillbilly', 'hillbilly boogie', 'schellack-schatz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1925'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '102.853'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'fuk  RIAA'
'TBPM' (BPM (beats per minute))                     '102.853'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1925'
'TIT2' (Title/songname/content description)         "i'm on the crest of a wave"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'rhythm boys'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'swing', 'hillbilly', 'hillbilly boogie', 'schellack-schatz']
'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-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.25 dB'
'TXXX:replaygain_track_peak'                        '0.708813'

========================== row from database ==========================
                                              'id'  1496065
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Rhythm Boys - I_m On The Crest Of A Wave.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  190
                                           'genre'  prerock-unsorted
                                        'filesize'  3169249
                                           'mtime'  1620385513
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular Rhythm Boys I_m On The Crest Of Wave prerock unsorted
                                      'tag_artist'  rhythm boys
                                     'tag_release'  fuk  RIAA
                                       'tag_title'  i'm on the crest of a wave
                                             'bpm'  102.853
                                    'search_title'  'a':8 'crest':6 'i':1 'im':3 'm':2 'of':7 'on':4 'the':5 'wave':9
                                   'search_artist'  'boys':2 'rhythm':1
                                  'search_release'  'fuk':1 'riaa':2
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':8 'and':7 'boys':11 'country':4 'crest':16 'exotica':2 'i':12 'jazz':1 'm':13 'of':17 'oldies':3 'on':14 'popular':9 'prerock':19 'rhythm':10 'the':15 'unsorted':20 'wave':18
                                    'search_combo'  '00oldiepop':18 '1920s':19 '1930s':21 'a':8A 'and':20 'boys':11B,24 'country':17 'crest':6A,29 'exotica':15 'fuk':12C 'i':1A,25 'im':3A 'jazz':14 'm':2A,26 'of':7A,30 'oldies':16 'on':4A,27 'popular':22 'prerock':32 'rhythm':10B,23 'riaa':13C 'the':5A,28 'unsorted':33 'wave':9A,31
                                    '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'swing', 'hillbilly', 'hillbilly boogie', 'schellack-schatz']
                                        'tag_date'  1925
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385513.3004706  (2021-05-07 13:05:13)
                             'size'  3169249