======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '158'
                                          'artist'  'Duo Hofmann'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Naar Buiten (Waar De Vogeltjes Fluiten)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1923'
                                        'comments'  ''
                                           'genre'  'prerock-vocal;loc-eur-netherlands'
                                             'bpm'  '84.844'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '84.844'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-vocal', 'loc-eur-netherlands']
'TDRC' (Recording time)                             '1923'
'TIT2' (Title/songname/content description)         'Naar Buiten (Waar De Vogeltjes Fluiten)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Duo Hofmann'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.28 dB'
'TXXX:replaygain_track_peak'                        '0.398682'

========================== row from database ==========================
                                              'id'  1450931
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1923/Duo Hofmann - Naar Buiten (Waar De Vogeltjes Fluiten) 1923.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  158
                                           'genre'  prerock-vocal;loc-eur-netherlands
                                        'filesize'  3170197
                                           'mtime'  1621627127
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1923 1923 prerock vocal;loc eur netherlands
                                      'tag_artist'  Duo Hofmann
                                     'tag_release'  None
                                       'tag_title'  Naar Buiten (Waar De Vogeltjes Fluiten)
                                             'bpm'  84.844
                                    'search_title'  'buiten':2 'de':5 'fluiten':7,8 'naar':1 'vogeltjes':6 'waar':3,4
                                   'search_artist'  'duo':1 'hofmann':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1923':6 'country':4 'eur':12 'exotica':2 'jazz':1 'loc':9,11 'netherlands':13 'oldies':3 'prerock':7 'vocal':8,10
                                    'search_combo'  '00oldiepop':15 '1923':16 'buiten':2A 'country':14 'de':5A 'duo':9B 'eur':22 'exotica':12 'fluiten':7A,8A 'hofmann':10B 'jazz':11 'loc':19,21 'naar':1A 'netherlands':23 'oldies':13 'prerock':17 'vocal':18,20 'vogeltjes':6A 'waar':3A,4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1923
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627127.2148538  (2021-05-21 21:58:47)
                             'size'  3170197