======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '310'
                                          'artist'  'c.db.sn'
                                     'text_people'  ''
                                         'release'  'At the End of It All'
                                           'title'  '... At the End of It All'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['idm', 'electronic', 'tympanik audio', 'experimental', 'ambient']"
                                     'discogstags'  "['glitch', 'idm', 'electronic', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '11'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '128.089'
                                             'key'  '9A'
                                        'acoustid'  'c4a987cc-7554-4681-8ab9-f30a61b4c6a2'
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))                     '128.089'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDOR' (Original release time)                      '2011'
'TDRC' (Recording time)                             '2011-12-13'
'TIT2' (Title/songname/content description)         '... At the End of It All'
'TKEY' (Initial key)                                '9A'
'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)               '2/11'
'TSO2'                                              'c.db.sn'
'TSOP' (Performer sort order)                       'c.db.sn'
'TXXX:ASIN'                                         'B006R6Q2IK'
'TXXX:Acoustid Id'                                  'c4a987cc-7554-4681-8ab9-f30a61b4c6a2'
'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:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['glitch', 'idm', 'electronic', 'ambient']
'TXXX:lastfmtags'                                   ['idm', 'electronic', 'tympanik audio', 'experimental', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.08 dB'
'TXXX:replaygain_track_peak'                        '0.492903'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f1c5de0b-a3d1-4639-b2b3-fc850d62b17d')

========================== row from database ==========================
                                              'id'  234845
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0synth_and_beat/C.DB.SN/02 ... at the end of it all.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  310
                                           'genre'  electronic
                                        'filesize'  12498165
                                           'mtime'  1636912258
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0synth_and_beat C.DB.SN 02 at end it all electronic
                                      'tag_artist'  c.db.sn
                                     'tag_release'  At the End of It All
                                       'tag_title'  ... At the End of It All
                                             'bpm'  128.089
                                    'search_title'  'all':6 'at':1 'end':3 'it':5 'of':4 'the':2
                                   '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'  '0synth':1 'all':11 'and':2 'at':8 'beat':3 'c':4 'cdbsn':7 'db':5 'electronic':12 'end':9 'it':10 'sn':6
                                    'search_combo'  '0synth':17 'all':6A,16C,27 'and':18 'at':1A,11C,24 'beat':19 'c':7B,20 'cdbsn':10B,23 'db':8B,21 'electronic':28 'end':3A,13C,25 'it':5A,15C,26 'of':4A,14C 'sn':9B,22 'the':2A,12C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['idm', 'electronic', 'tympanik audio', 'experimental', 'ambient']
                                        'tag_date'  2011
                                     'discogstags'  ['glitch', 'idm', 'electronic', 'ambient']

============================== file details ==============================
                                           'mtime'  1636912257.5860376  (2021-11-14 18:50:57)
                             'size'  12498165