======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '289'
                                          'artist'  'Boellmann'
                                     'text_people'  ''
                                         'release'  'La Musica Religiosa: Requiem'
                                           'title'  'priere a Notre Dame from suit'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-1', 'q-bass-4', "
 "'q-busy-2', 'q-grit-2', 'q-play-2', 'Q-OLDST-1', 'q-chart-3', 'q-drums-1', "
 "'q-other-3', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'piano', 'organ', 'chamber music', 'chorales']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '144.955'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'La Musica Religiosa: Requiem'
'TBPM' (BPM (beats per minute))                     '144.955'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'priere a Notre Dame from suit'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Boellmann'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['german', 'piano', 'organ', 'chamber music', 'chorales']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.31 dB'
'TXXX:replaygain_track_peak'                        '0.743319'

========================== row from database ==========================
                                              'id'  190394
                                            'path'  /data/Music/Bulk/00instruments-classical/Unsorted/10 - priere a Notre Dame from suit.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  289
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  9269262
                                           'mtime'  1620561859
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Unsorted 10 prerock classical or classical instruments
                                      'tag_artist'  Boellmann
                                     'tag_release'  La Musica Religiosa: Requiem
                                       'tag_title'  priere a Notre Dame from suit
                                             'bpm'  144.955
                                    'search_title'  'a':2 'dame':4 'from':5 'notre':3 'priere':1 'suit':6
                                   'search_artist'  'boellmann':1
                                  'search_release'  'la':1 'musica':2 'religiosa':3,4 'requiem':5
                                     'search_rest'  '00instruments':1 'classical':2 'instruments':6 'or':5 'prerock':4 'unsorted':3
                                    'search_combo'  '00instruments':13 'a':2A 'boellmann':7B 'classical':14 'dame':4A 'from':5A 'instruments':18 'la':8C 'musica':9C 'notre':3A 'or':17 'prerock':16 'priere':1A 'religiosa':10C,11C 'requiem':12C 'suit':6A 'unsorted':15
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  4B
                                           '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-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['german', 'piano', 'organ', 'chamber music', 'chorales']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561858.8055766  (2021-05-09 14:04:18)
                             'size'  9269262