======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '176'
                                          'artist'  'Pink Floyd'
                                     'text_people'  ''
                                         'release'  'Echoes The Best Of Pink Floyd Retail'
                                           'title'  'Jugband Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic "
 "rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '120.042'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Echoes The Best Of Pink Floyd Retail'
'TBPM' (BPM (beats per minute))                     '120.042'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Jugband Blues'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Pink Floyd'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'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'                        '+0.72 dB'
'TXXX:replaygain_track_peak'                        '0.524003'

========================== row from database ==========================
                                              'id'  1411025
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Pink Floyd/MBZ;#Pink Floyd;#Echoes The Best of Pink Floyd (disc 2);#11;#Jugband Blues.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  176
                                           'genre'  rock-cppex-progressive
                                        'filesize'  4241566
                                           'mtime'  1620737713
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy MBZ;#Pink Floyd;#Echoes of (disc 2);#11;#Jugband rock cppex progressive
                                      'tag_artist'  Pink Floyd
                                     'tag_release'  Echoes The Best Of Pink Floyd Retail
                                       'tag_title'  Jugband Blues
                                             'bpm'  120.042
                                    'search_title'  'blues':2 'jugband':1
                                   'search_artist'  'floyd':2 'pink':1
                                  'search_release'  'best':3 'echoes':1 'floyd':6 'of':4 'pink':5 'retail':7 'the':2
                                     'search_rest'  '11':14,17 '2':13,16 'classicprogpsy':1 'cppex':20 'disc':11,12 'echoes':7,9 'floyd':6,8 'jugband':15,18 'mbz':2,4 'of':10 'pink':3,5 'progressive':21 'rock':19
                                    'search_combo'  '11':25,28 '2':24,27 'best':7C 'blues':2A 'classicprogpsy':12 'cppex':31 'disc':22,23 'echoes':5C,18,20 'floyd':4B,10C,17,19 'jugband':1A,26,29 'mbz':13,15 'of':8C,21 'pink':3B,9C,14,16 'progressive':32 'retail':11C 'rock':30 'the':6C
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737713.400848  (2021-05-11 14:55:13)
                             'size'  4241566