======================== unified (from filesystem) ========================
                                         'bitrate'  '67.561'
                                        'duration'  '7'
                                          'artist'  '[unknown]'
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                                         'release'  'BBC Sound Effects Library, Volume 8: Comedy, Fantasy & Humour'
                                           'title'  'Vocals, Angry Motorist'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
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                                      'tracktotal'  '85'
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'nonmusic-fragments-sounds and sfx'
                                             'bpm'  '141.611'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

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'TCON' (Content type, a.k.a. Genre)                 'nonmusic-fragments-sounds and sfx'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Vocals, Angry Motorist'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TPE2' (Band/orchestra/accompaniment)               '[unknown]'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'BBC Sound Effects Library'
'TRCK' (Track number/Position in set)               '9/85'
'TSO2'                                              '[unknown]'
'TSOP' (Performer sort order)                       '[unknown]'
'TXXX:Artists'                                      '[unknown]'
'TXXX:MusicBrainz Album Artist Id'                  '125ec42a-7229-4250-afc5-e057484327fe'
'TXXX:MusicBrainz Album Id'                         '32766b9c-963b-4b47-816c-4f40b08054a5'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'other'
'TXXX:MusicBrainz Artist Id'                        '125ec42a-7229-4250-afc5-e057484327fe'
'TXXX:MusicBrainz Release Group Id'                 'ef1bd3dd-eb68-49be-8df1-8db770fdeae8'
'TXXX:MusicBrainz Release Track Id'                 'de8f95cf-a2f4-33fb-8bd2-e6101b778889'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.20 dB'
'TXXX:replaygain_track_peak'                        '0.654313'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'0818df63-e182-4627-a485-365c4f1020ca')

========================== row from database ==========================
                                              'id'  1108139
                                            'path'  /data/Music/Bulk/0nonmusic/00sfx/BBC 08 - Misc (flac)/09 Horn, Angry Motorist.mp3
                                         'working'  None
                                         'bitrate'  68
                                    'duration_sec'  7
                                           'genre'  nonmusic-fragments-sounds and sfx
                                        'filesize'  67481
                                           'mtime'  1636404221
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00sfx 08 Misc (flac) 09 Horn, nonmusic fragments sounds and sfx
                                      'tag_artist'  [unknown]
                                     'tag_release'  BBC Sound Effects Library, Volume 8: Comedy, Fantasy & Humour
                                       'tag_title'  Vocals, Angry Motorist
                                             'bpm'  141.611
                                    'search_title'  'angry':3 'motorist':4 'vocals':1,2
                                   'search_artist'  'unknown':1,2
                                  'search_release'  '8':7,8 'bbc':1 'comedy':9,10 'effects':3 'fantasy':11 'humour':12 'library':4,5 'sound':2 'volume':6
                                     'search_rest'  '00sfx':2 '0nonmusic':1 'and':11 'flac':4,5 'fragments':9 'horn':6,7 'misc':3 'nonmusic':8 'sfx':12 'sounds':10
                                    'search_combo'  '00sfx':20 '0nonmusic':19 '8':13C,14C 'and':29 'angry':3A 'bbc':7C 'comedy':15C,16C 'effects':9C 'fantasy':17C 'flac':22,23 'fragments':27 'horn':24,25 'humour':18C 'library':10C,11C 'misc':21 'motorist':4A 'nonmusic':26 'sfx':30 'sound':8C 'sounds':28 'unknown':5B,6B 'vocals':1A,2A 'volume':12C
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-1', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636404220.5158544  (2021-11-08 21:43:40)
                             'size'  67481