======================== unified (from filesystem) ========================
                                         'bitrate'  '251.35'
                                        'duration'  '259'
                                          'artist'  'Spliff'
                                     'text_people'  ''
                                         'release'  'Progsoup 27'
                                           'title'  'Carbonara'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['deutsch', 'german', 'neue deutsche welle', 'rock', '80s', 'ndw']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '45'
                                      'tracktotal'  ''
                                            'date'  '1984'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '135.728'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Progsoup 27'
'TBPM' (BPM (beats per minute))                     '135.728'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1984'
'TIT2' (Title/songname/content description)         'Carbonara'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Spliff'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '45'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['deutsch', 'german', 'neue deutsche welle', 'rock', '80s', 'ndw']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.75 dB'
'TXXX:replaygain_track_peak'                        '0.945760'

========================== row from database ==========================
                                              'id'  1412784
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 27/1548 spliff - carbonara.mp3
                                         'working'  None
                                         'bitrate'  251
                                    'duration_sec'  259
                                           'genre'  rock-cppex-progressive
                                        'filesize'  8150114
                                           'mtime'  1620737029
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 1548 spliff carbonara rock cppex progressive
                                      'tag_artist'  Spliff
                                     'tag_release'  Progsoup 27
                                       'tag_title'  Carbonara
                                             'bpm'  135.728
                                    'search_title'  'carbonara':1
                                   'search_artist'  'spliff':1
                                  'search_release'  '27':2 'progsoup':1
                                     'search_rest'  '1548':3 'carbonara':5 'classicprogpsy':1 'cppex':7 'progressive':8 'progsoup':2 'rock':6 'spliff':4
                                    'search_combo'  '1548':7 '27':4C 'carbonara':1A,9 'classicprogpsy':5 'cppex':11 'progressive':12 'progsoup':3C,6 'rock':10 'spliff':2B,8
                                    'tag_tracknum'  45
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['deutsch', 'german', 'neue deutsche welle', 'rock', '80s', 'ndw']
                                        'tag_date'  1984
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737028.85331  (2021-05-11 14:43:48)
                             'size'  8150114