======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '236'
                                          'artist'  'Queen'
                                     'text_people'  ''
                                         'release'  'Greatest Hits II'
                                           'title'  'Under Pressure'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']"
                                     'discogstags'  "['electronic', 'rock', 'synth-pop', 'arena rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '17'
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '113.772'
                                             'key'  '10B'
                                        'acoustid'  '85dfbfa9-bd9f-4744-9a72-0eae405adf30'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Greatest Hits II'
'TBPM' (BPM (beats per minute))                     '113.772'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDOR' (Original release time)                      '1991'
'TDRC' (Recording time)                             '2014'
'TIT2' (Title/songname/content description)         'Under Pressure'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '236800'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Queen & David Bowie'
'TPE2' (Band/orchestra/accompaniment)               'Queen'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '2/17'
'TSO2'                                              'Queen'
'TSOP' (Performer sort order)                       'Queen & Bowie, David'
'TSRC' (ISRC (international standard recording code))  'CBCEG8100001/GBCEG0100041/GBCEG8100001/GBUM71029622'
'TXXX:Acoustid Id'                                  '85dfbfa9-bd9f-4744-9a72-0eae405adf30'
'TXXX:BARCODE'                                      '602547025883'
'TXXX:MusicBrainz Album Artist Id'                  '0383dadf-2a4e-4d10-a46a-e9e041da8eb3'
'TXXX:MusicBrainz Album Id'                         'e32f56e5-f999-4dfa-b273-951b765b1b93'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '0383dadf-2a4e-4d10-a46a-e9e041da8eb3/5441c29d-3602-4898-b1a1-b77fa23b8e50'
'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'                                  ['electronic', 'rock', 'synth-pop', 'arena rock']
'TXXX:lastfmtags'                                   ['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.01 dB'
'TXXX:replaygain_track_peak'                        '0.555969'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'32c7e292-14f1-4080-bddf-ef852e0a4c59')

========================== row from database ==========================
                                              'id'  1415117
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Queen/Queen - Greatest_Hits__Vol[1]._2/Queen - 02 - Under Pressure.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  236
                                           'genre'  rock-cppex-classic
                                        'filesize'  3798143
                                           'mtime'  1636038814
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Greatest_Hits__Vol[1]._2 02 rock cppex classic
                                      'tag_artist'  Queen
                                     'tag_release'  Greatest Hits II
                                       'tag_title'  Under Pressure
                                             'bpm'  113.772
                                    'search_title'  'pressure':2 'under':1
                                   'search_artist'  'queen':1
                                  'search_release'  'greatest':1 'hits':2 'ii':3
                                     'search_rest'  '1':5 '2':6,10 'classic':13 'classicprogpsy':1 'cppex':12 'greatest':2,7 'hits':3,8 'rock':11 'vol':4 'vol1':9
                                    'search_combo'  '1':11 '2':12,16 'classic':19 'classicprogpsy':7 'cppex':18 'greatest':4C,8,13 'hits':5C,9,14 'ii':6C 'pressure':2A 'queen':3B 'rock':17 'under':1A 'vol':10 'vol1':15
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']
                                        'tag_date'  2014
                                     'discogstags'  ['electronic', 'rock', 'synth-pop', 'arena rock']

============================== file details ==============================
                                           'mtime'  1636038814.382251  (2021-11-04 16:13:34)
                             'size'  3798143