======================== unified (from filesystem) ========================
                                         'bitrate'  '232.641'
                                        'duration'  '188'
                                          'artist'  'Robert Jan Stips'
                                     'text_people'  ''
                                         'release'  'progsoup 52 (nederprog)'
                                           'title'  '06 - Camera'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', '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-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['netherlands', 'nits']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '12'
                                            'date'  '1981'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '145.790'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'progsoup 52 (nederprog)'
'TBPM' (BPM (beats per minute))                     '145.790'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1981'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Veilige mode)'
'TIT2' (Title/songname/content description)         '06 - Camera'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Robert Jan Stips'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '2/12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['netherlands', 'nits']
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.46 dB'
'TXXX:replaygain_track_peak'                        '0.692129'

========================== row from database ==========================
                                              'id'  1415342
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 52 (nederprog)/2930 robert jan stips - camera.mp3
                                         'working'  None
                                         'bitrate'  232
                                    'duration_sec'  188
                                           'genre'  rock-cppex-progressive
                                        'filesize'  5484782
                                           'mtime'  1620737550
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP 2930 robert jan stips camera rock cppex progressive
                                      'tag_artist'  Robert Jan Stips
                                     'tag_release'  progsoup 52 (nederprog)
                                       'tag_title'  06 - Camera
                                             'bpm'  145.79
                                    'search_title'  'camera':1
                                   'search_artist'  'jan':2 'robert':1 'stips':3
                                  'search_release'  '52':2 'nederprog':3,4 'progsoup':1
                                     'search_rest'  '2930':3 'camera':7 'classicprogpsy':1 'cppex':9 'jan':5 'progressive':10 'progsoup':2 'robert':4 'rock':8 'stips':6
                                    'search_combo'  '2930':11 '52':6C 'camera':1A,15 'classicprogpsy':9 'cppex':17 'jan':3B,13 'nederprog':7C,8C 'progressive':18 'progsoup':5C,10 'robert':2B,12 'rock':16 'stips':4B,14
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', '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'  ['netherlands', 'nits']
                                        'tag_date'  1981
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737550.3699858  (2021-05-11 14:52:30)
                             'size'  5484782