======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '343'
                                          'artist'  'Gordian Knot'
                                     'text_people'  ''
                                         'release'  'Progsoup 35'
                                           'title'  "Fischer's Gambit"
                                           '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-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['progressive rock', 'progressive metal', 'instrumental', 'fusion', "
 "'progressive']")
                                     'discogstags'  "['prog rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '44'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '129.896'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Progsoup 35'
'TBPM' (BPM (beats per minute))                     '129.896'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         "Fischer's Gambit"
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gordian Knot'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '44'
'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'                                  ['prog rock', 'rock']
'TXXX:lastfmtags'                                   ['progressive rock',
 'progressive metal',
 'instrumental',
 'fusion',
 'progressive']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.20 dB'
'TXXX:replaygain_track_peak'                        '0.499372'

========================== row from database ==========================
                                              'id'  1500966
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 35/2063 gordian knot -  Fischer_s Gambit.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  343
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  8242098
                                           'mtime'  1620737251
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 2063 gordian knot Fischer_s rock cppex progressive;set pl progspace
                                      'tag_artist'  Gordian Knot
                                     'tag_release'  Progsoup 35
                                       'tag_title'  Fischer's Gambit
                                             'bpm'  129.896
                                    'search_title'  'fischer':1 'fischers':3 'gambit':4 's':2
                                   'search_artist'  'gordian':1 'knot':2
                                  'search_release'  '35':2 'progsoup':1
                                     'search_rest'  '2063':3 'classicprogpsy':1 'cppex':9 'fischer':6 'gordian':4 'knot':5 'pl':14 'progressive':10,12 'progsoup':2 'progspace':15 'rock':8 's':7 'set':11,13
                                    'search_combo'  '2063':11 '35':8C 'classicprogpsy':9 'cppex':17 'fischer':1A,14 'fischers':3A 'gambit':4A 'gordian':5B,12 'knot':6B,13 'pl':22 'progressive':18,20 'progsoup':7C,10 'progspace':23 'rock':16 's':2A,15 'set':19,21
                                    'tag_tracknum'  44
                                      'num_images'  0
                                             'key'  7A
                                           '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'progressive metal', 'instrumental', 'fusion', 'progressive']
                                        'tag_date'  2002
                                     'discogstags'  ['prog rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620737251.2275703  (2021-05-11 14:47:31)
                             'size'  8242098