======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '95'
                                          'artist'  'c.db.sn'
                                     'text_people'  ''
                                         'release'  'At the End of It All'
                                           'title'  'The Stars Falling Cold'
                                           'quals'  "['q-bass-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-1']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '11'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'im-electronic'
                                             'bpm'  '90.7'
                                             'key'  '8B'
                                        'acoustid'  '75bb9445-b9e7-4702-b867-f4c46ef1dba2'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'At the End of It All'
'TBPM' (BPM (beats per minute))                     '90.7'
'TCON' (Content type, a.k.a. Genre)                 'im-electronic'
'TDOR' (Original release time)                      '2011'
'TDRC' (Recording time)                             '2011-12-13'
'TIT2' (Title/songname/content description)         'The Stars Falling Cold'
'TKEY' (Initial key)                                '8B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'c.db.sn'
'TPE2' (Band/orchestra/accompaniment)               'c.db.sn'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Tympanik Audio'
'TRCK' (Track number/Position in set)               '10/11'
'TSO2'                                              'c.db.sn'
'TSOP' (Performer sort order)                       'c.db.sn'
'TXXX:ASIN'                                         'B006R6Q2IK'
'TXXX:Acoustid Id'                                  '75bb9445-b9e7-4702-b867-f4c46ef1dba2'
'TXXX:BARCODE'                                      '884501650007'
'TXXX:CATALOGNUMBER'                                'TA065'
'TXXX:MusicBrainz Album Artist Id'                  'b0f0b6ab-dbc6-478e-bbfd-fdc9fa4424f2'
'TXXX:MusicBrainz Album Id'                         '2e1ee30a-1bf6-4baa-b217-db9c3d900136'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'b0f0b6ab-dbc6-478e-bbfd-fdc9fa4424f2'
'TXXX:MusicBrainz Release Group Id'                 '161abf95-de19-4349-86d5-33fea14ceccb'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.62 dB'
'TXXX:replaygain_track_peak'                        '0.595774'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'99a47adf-c4f1-46ad-9a92-372ce0c9ec49')

========================== row from database ==========================
                                              'id'  1537105
                                            'path'  /data/Music/Other/F3/c.db.sn/10 the stars falling cold.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  95
                                           'genre'  im-electronic
                                        'filesize'  3888180
                                           'mtime'  1662800210
                                   'redo_metaread'  0
                                        'rest_str'   F3 10 stars falling cold im electronic
                                      'tag_artist'  c.db.sn
                                     'tag_release'  At the End of It All
                                       'tag_title'  The Stars Falling Cold
                                             'bpm'  90.7
                                    'search_title'  'cold':4 'falling':3 'stars':2 'the':1
                                   'search_artist'  'c':1 'cdbsn':4 'db':2 'sn':3
                                  'search_release'  'all':6 'at':1 'end':3 'it':5 'of':4 'the':2
                                     'search_rest'  'cold':4 'electronic':6 'f3':1 'falling':3 'im':5 'stars':2
                                    'search_combo'  'all':14C 'at':9C 'c':5B 'cdbsn':8B 'cold':4A,18 'db':6B 'electronic':20 'end':11C 'f3':15 'falling':3A,17 'im':19 'it':13C 'of':12C 'sn':7B 'stars':2A,16 'the':1A,10C
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['q-bass-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-1']
                                      'lastfmtags'  []
                                        'tag_date'  2011
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800209.9198377  (2022-09-10 10:56:49)
                             'size'  3888180