======================== unified (from filesystem) ========================
                                         'bitrate'  '144.0'
                                        'duration'  '76'
                                          'artist'  'Jones & Collins Astoria Hot 8'
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  'Damp Weather 1929 INCOMPLETE'
                                           'quals'  ("['Q-LOCALNESS-2', 'Q-JZFKS-3', '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-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['new orleans', 'hot jazz', 'dixieland', 'red hot jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1929'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '144.645'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '20s and 30s popular'
'TBPM' (BPM (beats per minute))                     '144.645'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1929'
'TIT2' (Title/songname/content description)         'Damp Weather 1929 INCOMPLETE'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jones & Collins Astoria Hot 8'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['new orleans', 'hot jazz', 'dixieland', 'red hot jazz']
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.70 dB'
'TXXX:replaygain_track_peak'                        '0.451648'

========================== row from database ==========================
                                              'id'  1156745
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Jones & Collins Astoria Hot 8 - Damp Weather 1929 INCOMPLETE.mp3
                                         'working'  None
                                         'bitrate'  144
                                    'duration_sec'  76
                                           'genre'  prerock-unsorted
                                        'filesize'  1385622
                                           'mtime'  1620385453
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s prerock unsorted
                                      'tag_artist'  Jones & Collins Astoria Hot 8
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  Damp Weather 1929 INCOMPLETE
                                             'bpm'  144.645
                                    'search_title'  '1929':3 'damp':1 'incomplete':4 'weather':2
                                   'search_artist'  '8':5 'astoria':3 'collins':2 'hot':4 'jones':1
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':18 '1920s':19 '1929':3A '1930s':20 '20s':10C '30s':12C '8':9B 'and':11C 'astoria':7B 'collins':6B 'country':17 'damp':1A 'exotica':15 'hot':8B 'incomplete':4A 'jazz':14 'jones':5B 'oldies':16 'popular':13C 'prerock':21 'unsorted':22 'weather':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['new orleans', 'hot jazz', 'dixieland', 'red hot jazz']
                                        'tag_date'  1929
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385452.8618035  (2021-05-07 13:04:12)
                             'size'  1385622