======================== unified (from filesystem) ========================
                                         'bitrate'  '187.903'
                                        'duration'  '294'
                                          'artist'  'manfred mann'
                                     'text_people'  ''
                                         'release'  'progsoup 4'
                                           'title'  'nightinggales'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['pop', 'rock', 'oldies', '60s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '33'
                                      'tracktotal'  '8'
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '95.124'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'progsoup 4'
'TBPM' (BPM (beats per minute))                     '95.124'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'nightinggales'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'manfred mann'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '33/8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['pop', 'rock', 'oldies', '60s', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.34 dB'
'TXXX:replaygain_track_peak'                        '0.812177'

========================== row from database ==========================
                                              'id'  1412671
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup4/241 manfred mann - nightinggales.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  294
                                           'genre'  rock-cppex-progressive
                                        'filesize'  6910336
                                           'mtime'  1620737671
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup4 241 rock cppex progressive
                                      'tag_artist'  manfred mann
                                     'tag_release'  progsoup 4
                                       'tag_title'  nightinggales
                                             'bpm'  95.124
                                    'search_title'  'nightinggales':1
                                   'search_artist'  'manfred':1 'mann':2
                                  'search_release'  '4':2 'progsoup':1
                                     'search_rest'  '241':4 'classicprogpsy':1 'cppex':6 'progressive':7 'progsoup':2 'progsoup4':3 'rock':5
                                    'search_combo'  '241':9 '4':5C 'classicprogpsy':6 'cppex':11 'manfred':2B 'mann':3B 'nightinggales':1A 'progressive':12 'progsoup':4C,7 'progsoup4':8 'rock':10
                                    'tag_tracknum'  33
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'rock', 'oldies', '60s', 'classic rock']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737671.0829926  (2021-05-11 14:54:31)
                             'size'  6910336