======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '136'
                                          'artist'  'Hans Kolesa Vienna Light Orchestra'
                                     'text_people'  ''
                                         'release'  'Philips P 10101 R'
                                           'title'  'Wien Bleibt Wien (Stolz)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1953'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '121.337'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Philips P 10101 R'
'TBPM' (BPM (beats per minute))                     '121.337'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1953'
'TIT2' (Title/songname/content description)         'Wien Bleibt Wien (Stolz)'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Hans Kolesa Vienna Light Orchestra'
'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:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+1.46 dB'
'TXXX:replaygain_track_peak'                        '0.475138'

========================== row from database ==========================
                                              'id'  1444179
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1953/Hans Kolesa Vienna Light Orchestra - Wien Bleibt Wien (Stolz) 1953.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  136
                                           'genre'  prerock-band
                                        'filesize'  2739856
                                           'mtime'  1620561284
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1953 1953 prerock band
                                      'tag_artist'  Hans Kolesa Vienna Light Orchestra
                                     'tag_release'  Philips P 10101 R
                                       'tag_title'  Wien Bleibt Wien (Stolz)
                                             'bpm'  121.337
                                    'search_title'  'bleibt':2 'stolz':3,4 'wien':1
                                   'search_artist'  'hans':1 'kolesa':2 'light':4 'orchestra':5 'vienna':3
                                  'search_release'  '10101':3 'p':2 'philips':1 'r':4
                                     'search_rest'  '00oldiepop':5 '1953':6 'band':8 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7
                                    'search_combo'  '00oldiepop':18 '10101':12C '1953':19 'band':21 'bleibt':2A 'country':17 'exotica':15 'hans':5B 'jazz':14 'kolesa':6B 'light':8B 'oldies':16 'orchestra':9B 'p':11C 'philips':10C 'prerock':20 'r':13C 'stolz':3A,4A 'vienna':7B 'wien':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1953
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561283.5335124  (2021-05-09 13:54:43)
                             'size'  2739856