======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '194'
                                          'artist'  'Ben Bernie and All The Lads'
                                     'text_people'  ''
                                         'release'  "1930's rare and popular music"
                                           'title'  "It's a Lonesome Old Town 1930"
                                           '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-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['american', 'jazz', '30s', '1920s', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1930'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '141.909'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:\x1a\x16\x00\x00'                PRIV(owner='AverageLevel', data=b'\x1a\x16\x00\x00')
'PRIV:PeakValue:s|\x00\x00'                         PRIV(owner='PeakValue', data=b's|\x00\x00')
'TALB' (Album/Movie/Show title)                     "1930's rare and popular music"
'TBPM' (BPM (beats per minute))                     '141.909'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1930'
'TIT2' (Title/songname/content description)         "It's a Lonesome Old Town 1930"
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ben Bernie and All The Lads'
'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'                                   ['american', 'jazz', '30s', '1920s', 'swing']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.91 dB'
'TXXX:replaygain_track_peak'                        '0.486143'

========================== row from database ==========================
                                              'id'  1521221
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Ben Bernie and All The Lads - It_s a Lonesome Old Town 1930.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  194
                                           'genre'  prerock-swing
                                        'filesize'  3136587
                                           'mtime'  1620559519
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s It_s prerock swing
                                      'tag_artist'  Ben Bernie and All The Lads
                                     'tag_release'  1930's rare and popular music
                                       'tag_title'  It's a Lonesome Old Town 1930
                                             'bpm'  141.909
                                    'search_title'  '1930':8 'a':4 'it':1 'its':3 'lonesome':5 'old':6 's':2 'town':7
                                   'search_artist'  'all':4 'and':3 'ben':1 'bernie':2 'lads':6 'the':5
                                  'search_release'  '1930':1 '1930s':3 'and':5 'music':7 'popular':6 'rare':4 's':2
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 'country':4 'exotica':2 'it':8 'jazz':1 'oldies':3 'prerock':10 's':9 'swing':11
                                    'search_combo'  '00oldiepop':26 '1920s':27 '1930':8A,15C '1930s':17C,28 'a':4A 'all':12B 'and':11B,19C 'ben':9B 'bernie':10B 'country':25 'exotica':23 'it':1A,29 'its':3A 'jazz':22 'lads':14B 'lonesome':5A 'music':21C 'old':6A 'oldies':24 'popular':20C 'prerock':31 'rare':18C 's':2A,16C,30 'swing':32 'the':13B 'town':7A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  3A
                                           '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-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['american', 'jazz', '30s', '1920s', 'swing']
                                        'tag_date'  1930
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620559519.0851755  (2021-05-09 13:25:19)
                             'size'  3136587