======================== unified (from filesystem) ========================
                                         'bitrate'  '188.486'
                                        'duration'  '242'
                                          'artist'  'Johann Sebastian Bach'
                                     'text_people'  ''
                                         'release'  'Laced/Unlaced (disc 1: Laced)'
                                           'title'  'Largo'
                                           'quals'  "['q-bass-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'noughties pop;eos'
                                             'bpm'  '93.3'
                                             'key'  'B m'  (10A)
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=204, count=0)
'TALB' (Album/Movie/Show title)                     'Laced/Unlaced (disc 1: Laced)'
'TBPM' (BPM (beats per minute))                     '93.3'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['noughties pop', 'eos']
'TDRC' (Recording time)                             '2007'
'TDRL' (Release time)                               '2007-03-30'
'TDTG' (Tagging time)                               '2008-01-23 11:53:03'
'TIT2' (Title/songname/content description)         'Largo'
'TKEY' (Initial key)                                'B m'
'TPE1' (Lead performer(s)/Soloist(s))               'Johann Sebastian Bach'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '3'
'TSOP' (Performer sort order)                       'Bach, Johann Sebastian'
'TXXX:FMPS_Rating'                                  '0.8'
'TXXX:MusicBrainz Album Artist'                     'Emilie Autumn'
'TXXX:MusicBrainz Album Artist Id'                  'c8bc9ad3-1df2-4c9b-9cf7-cf6fc60441dc'
'TXXX:MusicBrainz Album Artist Sortname'            'Autumn, Emilie'
'TXXX:MusicBrainz Album Id'                         '1e1de6d6-0531-461c-8be6-a5a459e955f2'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '24f1766e-9635-4d58-a4d4-9413f9f98a4c'
'TXXX:MusicBrainz Non-Album'                        '0'
'TXXX:MusicIP PUID'                                 'bc2e0514-64cf-7053-b27d-10cc9f89a293'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.28 dB'
'TXXX:replaygain_track_peak'                        '0.599974'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8203625b-c6a6-462e-91ae-fd75b638ba12')

========================== row from database ==========================
                                              'id'  1538180
                                            'path'  /data/Music/Other/PrevSet/[0yay1]/Emilie Autumn/Laced Unlaced/(disc 1 Laced) - 03 - Johann Sebastian Bach - Largo.mp3
                                         'working'  None
                                         'bitrate'  188
                                    'duration_sec'  242
                                           'genre'  noughties pop;eos
                                        'filesize'  5950268
                                           'mtime'  1657683695
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [0yay1] Emilie Autumn 03 noughties pop;eos
                                      'tag_artist'  Johann Sebastian Bach
                                     'tag_release'  Laced/Unlaced (disc 1: Laced)
                                       'tag_title'  Largo
                                             'bpm'  93.3
                                    'search_title'  'largo':1
                                   'search_artist'  'bach':3 'johann':1 'sebastian':2
                                  'search_release'  '1':6,7 'disc':4,5 'laced':1,8,9 'lacedunlaced':3 'unlaced':2
                                     'search_rest'  '0yay1':2,3 'autumn':5 'emilie':4 'eos':8,10 'noughties':6 'pop':7,9 'prev':11 'prevset':1 'set':12
                                    'search_combo'  '0yay1':15,16 '1':10C,11C 'autumn':18 'bach':4B 'disc':8C,9C 'emilie':17 'eos':21,23 'johann':2B 'laced':5C,12C,13C 'lacedunlaced':7C 'largo':1A 'noughties':19 'pop':20,22 'prev':24 'prevset':14 'sebastian':3B 'set':25 'unlaced':6C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  B m
                                           'quals'  ['q-bass-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1']
                                      'lastfmtags'  []
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1657683694.6387575  (2022-07-13 05:41:34)
                             'size'  5950268