======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '213'
                                          'artist'  'Rat Souffli'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Doctor Who'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-2', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '133.228'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '133.228'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-series'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Doctor Who'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rat Souffli'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.82 dB'
'TXXX:replaygain_track_peak'                        '0.573309'

========================== row from database ==========================
                                              'id'  980032
                                            'path'  /data/Music/Bulk/0soundtrack/Dr Who - Collection/Dr Who - Xmas Number One - By Rat Souffle.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  213
                                           'genre'  soundtrack-video-series
                                        'filesize'  3410986
                                           'mtime'  1636921553
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Dr Collection Dr Xmas Number One By Souffle soundtrack video series
                                      'tag_artist'  Rat Souffli
                                     'tag_release'  None
                                       'tag_title'  Doctor Who
                                             'bpm'  133.228
                                    'search_title'  'doctor':1 'who':2
                                   'search_artist'  'rat':1 'souffli':2
                                  'search_release'  
                                     'search_rest'  '0soundtrack':1 'by':7 'collection':3 'dr':2 'number':5 'one':6 'series':11 'souffle':8 'soundtrack':9 'video':10 'xmas':4
                                    'search_combo'  '0soundtrack':5 'by':11 'collection':7 'doctor':1A 'dr':6 'number':9 'one':10 'rat':3B 'series':15 'souffle':12 'souffli':4B 'soundtrack':13 'video':14 'who':2A 'xmas':8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636921552.5778334  (2021-11-14 21:25:52)
                             'size'  3410986