======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '398'
                                          'artist'  "Sweet d'Buster"
                                     'text_people'  ''
                                         'release'  'progsoup 52 (nederprog)'
                                           'title'  'The Frog'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dutch', 'classic rock', '80s', 'robert jan stips']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '29'
                                      'tracktotal'  ''
                                            'date'  '1979'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '94.547'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'progsoup 52 (nederprog)'
'TBPM' (BPM (beats per minute))                     '94.547'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1979'
'TIT2' (Title/songname/content description)         'The Frog'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               "Sweet d'Buster"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '29'
'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'                                   ['dutch', 'classic rock', '80s', 'robert jan stips']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.10 dB'
'TXXX:replaygain_track_peak'                        '0.812956'

========================== row from database ==========================
                                              'id'  1516069
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 52 (nederprog)/2957 sweet d_buster - the frog.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  398
                                           'genre'  rock-cppex-progressive
                                        'filesize'  9567611
                                           'mtime'  1620737556
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP 2957 sweet d_buster the frog rock cppex progressive
                                      'tag_artist'  Sweet d'Buster
                                     'tag_release'  progsoup 52 (nederprog)
                                       'tag_title'  The Frog
                                             'bpm'  94.547
                                    'search_title'  'frog':2 'the':1
                                   'search_artist'  'buster':3 'd':2 'dbuster':4 'sweet':1
                                  'search_release'  '52':2 'nederprog':3,4 'progsoup':1
                                     'search_rest'  '2957':3 'buster':6 'classicprogpsy':1 'cppex':10 'd':5 'frog':8 'progressive':11 'progsoup':2 'rock':9 'sweet':4 'the':7
                                    'search_combo'  '2957':13 '52':8C 'buster':5B,16 'classicprogpsy':11 'cppex':20 'd':4B,15 'dbuster':6B 'frog':2A,18 'nederprog':9C,10C 'progressive':21 'progsoup':7C,12 'rock':19 'sweet':3B,14 'the':1A,17
                                    'tag_tracknum'  29
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dutch', 'classic rock', '80s', 'robert jan stips']
                                        'tag_date'  1979
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737556.355607  (2021-05-11 14:52:36)
                             'size'  9567611