======================== unified (from filesystem) ========================
                                         'bitrate'  '224.403'
                                        'duration'  '100'
                                          'artist'  'Danny Norbury'
                                     'text_people'  ''
                                         'release'  'Dusk'
                                           'title'  'Lullaby'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-3', 'Q-PIANO-4', 'q-syn-1', 'q-bass-1', 'q-busy-2', "
 "'q-grit-2', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['electronic', 'modern classical', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments-contemporary'
                                             'bpm'  '97.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dusk'
'TBPM' (BPM (beats per minute))                     '97.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments-contemporary'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Lullaby'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Danny Norbury'
'TRCK' (Track number/Position in set)               '6'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME v3.97'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'modern classical', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+5.73 dB'
'TXXX:replaygain_track_peak'                        '0.921132'

========================== row from database ==========================
                                              'id'  1364351
                                            'path'  /data/Music/Bulk/00instruments-classical/Danny Norbury - Dusk/06 Lullaby.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  100
                                           'genre'  prerock-classical or classical instruments-contemporary
                                        'filesize'  2808814
                                           'mtime'  1637329790
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 06 prerock classical classical instruments contemporary
                                      'tag_artist'  Danny Norbury
                                     'tag_release'  Dusk
                                       'tag_title'  Lullaby
                                             'bpm'  97.9
                                    'search_title'  'lullaby':1
                                   'search_artist'  'danny':1 'norbury':2
                                  'search_release'  'dusk':1
                                     'search_rest'  '00instruments':1 'classical':2 'contemporary':5 'instruments':4 'prerock':3
                                    'search_combo'  '00instruments':5 'classical':6 'contemporary':9 'danny':2B 'dusk':4C 'instruments':8 'lullaby':1A 'norbury':3B 'prerock':7
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'instrumental', 'piano', 'cello', 'ambient']
                                        'tag_date'  2007
                                     'discogstags'  ['electronic', 'modern classical', 'ambient']

============================== file details ==============================
                                           'mtime'  1637329789.5616322  (2021-11-19 14:49:49)
                             'size'  2808814