======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '182'
                                          'artist'  'Roy Fox'
                                     'text_people'  ''
                                         'release'  'Decca F 5373'
                                           'title'  'Dream Man (vocal - Peggy Dell)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['american', 'jazz', 'all', 'british', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '144.955'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Decca F 5373'
'TBPM' (BPM (beats per minute))                     '144.955'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Dream Man (vocal - Peggy Dell)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Roy Fox'
'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:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['american', 'jazz', 'all', 'british', 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.60 dB'
'TXXX:replaygain_track_peak'                        '0.658556'

========================== row from database ==========================
                                              'id'  1435013
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1935/Roy Fox - Dream Man (vocal - Peggy Dell) 4-1-1935.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  182
                                           'genre'  prerock-swing
                                        'filesize'  3647305
                                           'mtime'  1620560780
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1935 4 1 1935 prerock swing
                                      'tag_artist'  Roy Fox
                                     'tag_release'  Decca F 5373
                                       'tag_title'  Dream Man (vocal - Peggy Dell)
                                             'bpm'  144.955
                                    'search_title'  'dell':6,7 'dream':1 'man':2 'peggy':5 'vocal':3,4
                                   'search_artist'  'fox':2 'roy':1
                                  'search_release'  '5373':3 'decca':1 'f':2
                                     'search_rest'  '00oldiepop':5 '1':8 '1935':6 '4':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'swing':10
                                    'search_combo'  '00oldiepop':17 '1':20 '1935':18 '4':19 '5373':12C 'country':16 'decca':10C 'dell':6A,7A 'dream':1A 'exotica':14 'f':11C 'fox':9B 'jazz':13 'man':2A 'oldies':15 'peggy':5A 'prerock':21 'roy':8B 'swing':22 'vocal':3A,4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           '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-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['american', 'jazz', 'all', 'british', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620560779.8483407  (2021-05-09 13:46:19)
                             'size'  3647305