======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '176'
                                          'artist'  'Ambrose & Sam Browne'
                                     'text_people'  ''
                                         'release'  'Decca DTB 3181'
                                           'title'  'The organ,the monkey and me'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['amy winehouse', 'taged artists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '143.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Decca DTB 3181'
'TBPM' (BPM (beats per minute))                     '143.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1937'
'TIT2' (Title/songname/content description)         'The organ,the monkey and me'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ambrose & Sam Browne'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['amy winehouse', 'taged artists']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.84 dB'
'TXXX:replaygain_track_peak'                        '0.572791'

========================== row from database ==========================
                                              'id'  1474546
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Ambrose Mayfair Hotel Orchestra, Sam Browne - The organ grinder the monkey and me (1937).mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  176
                                           'genre'  prerock-swing
                                        'filesize'  2482173
                                           'mtime'  1620559465
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s popular Mayfair Hotel Orchestra, grinder (1937) prerock swing
                                      'tag_artist'  Ambrose & Sam Browne
                                     'tag_release'  Decca DTB 3181
                                       'tag_title'  The organ,the monkey and me
                                             'bpm'  143.6
                                    'search_title'  'and':7 'me':8 'monkey':6 'organ':2,4 'the':1,3,5
                                   'search_artist'  'ambrose':1 'browne':3 'sam':2
                                  'search_release'  '3181':3 'decca':1 'dtb':2
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 '1937':14,15 'country':4 'exotica':2 'grinder':13 'hotel':10 'jazz':1 'mayfair':9 'oldies':3 'orchestra':11,12 'popular':8 'prerock':16 'swing':17
                                    'search_combo'  '00oldiepop':19 '1920s':20 '1930s':21 '1937':28,29 '3181':14C 'ambrose':9B 'and':7A 'browne':11B 'country':18 'decca':12C 'dtb':13C 'exotica':16 'grinder':27 'hotel':24 'jazz':15 'mayfair':23 'me':8A 'monkey':6A 'oldies':17 'orchestra':25,26 'organ':2A,4A 'popular':22 'prerock':30 'sam':10B 'swing':31 'the':1A,3A,5A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['amy winehouse', 'taged artists']
                                        'tag_date'  1937
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620559465.2109435  (2021-05-09 13:24:25)
                             'size'  2482173