======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '252'
                                          'artist'  'Fletcher Henderson'
                                     'text_people'  ''
                                         'release'  'Edison-51276 (9266)'
                                           'title'  'Shake Your Feet (1923)'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-3', 'q-chart-2', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['big band', 'jazz', 'ragtime', '20s', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1925'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '111.517'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Edison-51276 (9266)'
'TBPM' (BPM (beats per minute))                     '111.517'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1925'
'TIT2' (Title/songname/content description)         'Shake Your Feet (1923)'
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '252421'
'TPE1' (Lead performer(s)/Soloist(s))               'Fletcher Henderson'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['big band', 'jazz', 'ragtime', '20s', 'swing']
'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'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.29 dB'
'TXXX:replaygain_track_peak'                        '0.423018'

========================== row from database ==========================
                                              'id'  1137378
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Fletcher Henderson & His Orchestra - Shake Your Feet 1923 Edison-51276.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  252
                                           'genre'  prerock-unsorted
                                        'filesize'  4077577
                                           'mtime'  1620385357
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular & His Orchestra prerock unsorted
                                      'tag_artist'  Fletcher Henderson
                                     'tag_release'  Edison-51276 (9266)
                                       'tag_title'  Shake Your Feet (1923)
                                             'bpm'  111.517
                                    'search_title'  '1923':4,5 'feet':3 'shake':1 'your':2
                                   'search_artist'  'fletcher':1 'henderson':2
                                  'search_release'  '51276':2 '9266':4,5 'edison':1 'edison51276':3
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':8 'and':7 'country':4 'exotica':2 'his':10 'jazz':1 'oldies':3 'orchestra':11 'popular':9 'prerock':12 'unsorted':13
                                    'search_combo'  '00oldiepop':17 '1920s':18 '1923':4A,5A '1930s':20 '51276':9C '9266':11C,12C 'and':19 'country':16 'edison':8C 'edison51276':10C 'exotica':14 'feet':3A 'fletcher':6B 'henderson':7B 'his':22 'jazz':13 'oldies':15 'orchestra':23 'popular':21 'prerock':24 'shake':1A 'unsorted':25 'your':2A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', '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'  ['big band', 'jazz', 'ragtime', '20s', 'swing']
                                        'tag_date'  1925
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385357.2277377  (2021-05-07 13:02:37)
                             'size'  4077577