======================== unified (from filesystem) ========================
                                         'bitrate'  '205.367'
                                        'duration'  '213'
                                          'artist'  'Atom and His Package'
                                     'text_people'  ''
                                         'release'  'Hair: Debatable'
                                           'title'  'Anarchy Means I Litter'
                                           'quals'  "['q-bass-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'punk'
                                             'bpm'  '127.0'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'APIC:Cover Image'                                  type PictureType.COVER_FRONT (Cover (front)) b'Cover Image'
                                     
'TALB' (Album/Movie/Show title)                     'Hair: Debatable'
'TBPM' (BPM (beats per minute))                     '127.0'
'TCON' (Content type, a.k.a. Genre)                 'punk'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Anarchy Means I Litter'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Atom and His Package'
'TRCK' (Track number/Position in set)               '16'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.64 dB'
'TXXX:replaygain_track_peak'                        '0.371855'

========================== row from database ==========================
                                              'id'  1538144
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Atom And His Package/Anarchy Means I Litter.mp3
                                         'working'  None
                                         'bitrate'  205
                                    'duration_sec'  213
                                           'genre'  punk
                                        'filesize'  5515325
                                           'mtime'  1662800461
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] And punk
                                      'tag_artist'  Atom and His Package
                                     'tag_release'  Hair: Debatable
                                       'tag_title'  Anarchy Means I Litter
                                             'bpm'  127.0
                                    'search_title'  'anarchy':1 'i':3 'litter':4 'means':2
                                   'search_artist'  'and':2 'atom':1 'his':3 'package':4
                                  'search_release'  'debatable':3 'hair':1,2
                                     'search_rest'  '9amusing':2,3 'and':4 'prev':6 'prevset':1 'punk':5 'set':7
                                    'search_combo'  '9amusing':13,14 'anarchy':1A 'and':6B,15 'atom':5B 'debatable':11C 'hair':9C,10C 'his':7B 'i':3A 'litter':4A 'means':2A 'package':8B 'prev':17 'prevset':12 'punk':16 'set':18
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['q-bass-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800461.3237216  (2022-09-10 11:01:01)
                             'size'  5515325