======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '397'
                                          'artist'  'Masfil'
                                     'text_people'  ''
                                         'release'  'progsoup 11'
                                           'title'  'Perpetuum Stabile 2.0'
                                           '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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '91'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '124.852'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'progsoup 11'
'TBPM' (BPM (beats per minute))                     '124.852'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Perpetuum Stabile 2.0'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Masfil'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '91'
'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: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'                        '-0.94 dB'
'TXXX:replaygain_track_peak'                        '0.403286'

========================== row from database ==========================
                                              'id'  1414051
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/Progsoup 11/646 masfel -stabile_2.0.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  397
                                           'genre'  rock-cppex-progressive
                                        'filesize'  12725253
                                           'mtime'  1620736285
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP Progsoup 646 masfel stabile_2.0 rock cppex progressive
                                      'tag_artist'  Masfil
                                     'tag_release'  progsoup 11
                                       'tag_title'  Perpetuum Stabile 2.0
                                             'bpm'  124.852
                                    'search_title'  '0':4 '2':3 '20':5 'perpetuum':1 'stabile':2
                                   'search_artist'  'masfil':1
                                  'search_release'  'progsoup':1
                                     'search_rest'  '0':7 '2':6 '20':9 '646':3 'classicprogpsy':1 'cppex':11 'masfel':4 'progressive':12 'progsoup':2 'rock':10 'stabile':5,8
                                    'search_combo'  '0':4A,14 '2':3A,13 '20':5A,16 '646':10 'classicprogpsy':8 'cppex':18 'masfel':11 'masfil':6B 'perpetuum':1A 'progressive':19 'progsoup':7C,9 'rock':17 'stabile':2A,12,15
                                    'tag_tracknum'  91
                                      'num_images'  0
                                             'key'  10A
                                           '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'  []
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736285.2773447  (2021-05-11 14:31:25)
                             'size'  12725253