======================== unified (from filesystem) ========================
                                         'bitrate'  '155.713'
                                        'duration'  '570'
                                          'artist'  'Paga Group'
                                     'text_people'  ''
                                         'release'  'progsoup 4'
                                           'title'  'Caravan'
                                           '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-3', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['progressive rock', 'zeuhl']"
                                     'discogstags'  "['jazz', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '31'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '120.042'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'progsoup 4'
'TBPM' (BPM (beats per minute))                     '120.042'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Caravan'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Paga Group'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '31'
'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:discogstags'                                  ['jazz', 'rock']
'TXXX:lastfmtags'                                   ['progressive rock', 'zeuhl']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.855218'

========================== row from database ==========================
                                              'id'  1416802
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup4/239 Paga Group  - Caravan.mp3
                                         'working'  None
                                         'bitrate'  155
                                    'duration_sec'  570
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  11109028
                                           'mtime'  1620737671
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup4 239 rock cppex progressive;set pl progspace
                                      'tag_artist'  Paga Group
                                     'tag_release'  progsoup 4
                                       'tag_title'  Caravan
                                             'bpm'  120.042
                                    'search_title'  'caravan':1
                                   'search_artist'  'group':2 'paga':1
                                  'search_release'  '4':2 'progsoup':1
                                     'search_rest'  '239':4 'classicprogpsy':1 'cppex':6 'pl':11 'progressive':7,9 'progsoup':2 'progsoup4':3 'progspace':12 'rock':5 'set':8,10
                                    'search_combo'  '239':9 '4':5C 'caravan':1A 'classicprogpsy':6 'cppex':11 'group':3B 'paga':2B 'pl':16 'progressive':12,14 'progsoup':4C,7 'progsoup4':8 'progspace':17 'rock':10 'set':13,15
                                    'tag_tracknum'  31
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'zeuhl']
                                        'tag_date'  1993
                                     'discogstags'  ['jazz', 'rock']

============================== file details ==============================
                                           'mtime'  1620737671.029104  (2021-05-11 14:54:31)
                             'size'  11109028