======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '188'
                                          'artist'  'London Philharmonic Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Wagner - Under the Double Eagle'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['soundtrack', 'classical', 'orchestral', 'orchestra', 'british', "
 "'instrumental']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '20'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '132.0'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '132.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Wagner - Under the Double Eagle'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'London Philharmonic Orchestra'
'TRCK' (Track number/Position in set)               '3/20'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.83.01, LAME dll 3.96, 320 Kbit/s, Joint Stereo, Normal quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soundtrack',
 'classical',
 'orchestral',
 'orchestra',
 'british',
 'instrumental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.43 dB'
'TXXX:replaygain_track_peak'                        '0.507445'

========================== row from database ==========================
                                              'id'  272075
                                            'path'  /data/Music/Bulk/00instruments-classical/London Philharmonic Orchestra/London Philharmonic Orchestra - 03 - Wagner - Under the Double Eagle.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  188
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  7537190
                                           'mtime'  1620561631
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 03 prerock classical or classical instruments
                                      'tag_artist'  London Philharmonic Orchestra
                                     'tag_release'  None
                                       'tag_title'  Wagner - Under the Double Eagle
                                             'bpm'  132.0
                                    'search_title'  'double':4 'eagle':5 'the':3 'under':2 'wagner':1
                                   'search_artist'  'london':1 'orchestra':3 'philharmonic':2
                                  'search_release'  
                                     'search_rest'  '00instruments':1 'classical':2 'instruments':5 'or':4 'prerock':3
                                    'search_combo'  '00instruments':9 'classical':10 'double':4A 'eagle':5A 'instruments':13 'london':6B 'or':12 'orchestra':8B 'philharmonic':7B 'prerock':11 'the':3A 'under':2A 'wagner':1A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'classical', 'orchestral', 'orchestra', 'british', 'instrumental']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561631.3163846  (2021-05-09 14:00:31)
                             'size'  7537190