======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '157'
                                          'artist'  'Comedian Harmonists'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Perpetuum Mobile'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['german', 'a cappella', 'a capella', 'oldies', 'deutsch']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1933'
                                        'comments'  ''
                                           'genre'  'prerock-vocal;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '113.772'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '113.772'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-vocal', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1933'
'TIT2' (Title/songname/content description)         'Perpetuum Mobile'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Comedian Harmonists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['german', 'a cappella', 'a capella', 'oldies', 'deutsch']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.00 dB'
'TXXX:replaygain_track_peak'                        '0.544670'

========================== row from database ==========================
                                              'id'  1435474
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1933/Comedian Harmonists - Perpetuum Mobile 26-9-1933.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  157
                                           'genre'  prerock-vocal;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  3149630
                                           'mtime'  1621853282
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1933 26 9 1933 prerock vocal;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Comedian Harmonists
                                     'tag_release'  None
                                       'tag_title'  Perpetuum Mobile
                                             'bpm'  113.772
                                    'search_title'  'mobile':2 'perpetuum':1
                                   'search_artist'  'comedian':1 'harmonists':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1933':6 '26':7 '9':8 'country':4 'exotica':2 'jazz':1 'mor':19 'oldies':3 'pl':14 'prerock':9 'set':11,13,16,18 'shirleyspinoza':15,17 'vocal':10,12
                                    'search_combo'  '00oldiepop':9 '1933':10 '26':11 '9':12 'comedian':3B 'country':8 'exotica':6 'harmonists':4B 'jazz':5 'mobile':2A 'mor':23 'oldies':7 'perpetuum':1A 'pl':18 'prerock':13 'set':15,17,20,22 'shirleyspinoza':19,21 'vocal':14,16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['german', 'a cappella', 'a capella', 'oldies', 'deutsch']
                                        'tag_date'  1933
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853281.9879184  (2021-05-24 12:48:01)
                             'size'  3149630