======================== unified (from filesystem) ========================
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                                        'duration'  '321'
                                          'artist'  'Andy Rehfeldt'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Neil Young - Rockin' In The Free World (Metal Reggae Version)"
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                                      'lastfmtags'  "['death metal', 'jazz', 'metal', 'cover', 'parody']"
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'set-th-novelty-styledcovers;set-cover or covered'
                                             'bpm'  '131.2'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'TCON' (Content type, a.k.a. Genre)                 ['set-th-novelty-styledcovers', 'set-cover or covered']
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         "Neil Young - Rockin' In The Free World (Metal Reggae Version)"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Andy Rehfeldt'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:COMPATIBLE_BRANDS'                            'iso6avc1mp41'
'TXXX:MAJOR_BRAND'                                  'dash'
'TXXX:MINOR_VERSION'                                '0'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['classical',
 'jazz',
 'contemporary',
 'art rock',
 'rock',
 'jazz-rock',
 'experimental']
'TXXX:lastfmtags'                                   ['death metal', 'jazz', 'metal', 'cover', 'parody']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.58 dB'
'TXXX:replaygain_track_peak'                        '1.003578'

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/AndyRehfeldt/Neil Young-Rockin_ In The Free World(Metal_Reggae Version)-lNr93Ab8o1I.mkv.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  321
                                           'genre'  set-th-novelty-styledcovers;set-cover or covered
                                        'filesize'  10292411
                                           'mtime'  1642257098
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm AndyRehfeldt Rockin_ World(Metal_Reggae lNr93Ab8o1I.mkv set th novelty styledcovers;set cover covered
                                      'tag_artist'  Andy Rehfeldt
                                     'tag_release'  None
                                       'tag_title'  Neil Young - Rockin' In The Free World (Metal Reggae Version)
                                             'bpm'  131.2
                                    'search_title'  'free':7 'in':5 'metal':9,10 'neil':1 'reggae':11 'rockin':3,4 'the':6 'version':12,13 'world':8 'young':2
                                   'search_artist'  'andy':1 'rehfeldt':2
                                  'search_release'  
                                     'search_rest'  'andy':20 'andyrehfeldt':1 'cover':18 'covered':19 'l':22 'lnr93ab8o1i':8 'lnr93ab8o1imkv':10 'metal':4 'mkv':9,24 'novelty':13 'nr93ab8o1i':23 'nr93ab8o1imkv':25 'reggae':5,7 'rehfeldt':21 'rockin':2 'set':11,15,17 'styledcovers':14,16 'th':12 'world':3 'worldmetal':6
                                    'search_combo'  'andy':14B,35 'andyrehfeldt':16 'cover':33 'covered':34 'free':7A 'in':5A 'l':37 'lnr93ab8o1i':23 'lnr93ab8o1imkv':25 'metal':9A,10A,19 'mkv':24,39 'neil':1A 'novelty':28 'nr93ab8o1i':38 'nr93ab8o1imkv':40 'reggae':11A,20,22 'rehfeldt':15B,36 'rockin':3A,4A,17 'set':26,30,32 'styledcovers':29,31 'th':27 'the':6A 'version':12A,13A 'world':8A,18 'worldmetal':21 'young':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-4', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']
                                      'lastfmtags'  ['death metal', 'jazz', 'metal', 'cover', 'parody']
                                        'tag_date'  2010
                                     'discogstags'  ['classical', 'jazz', 'contemporary', 'art rock', 'rock', 'jazz-rock', 'experimental']

============================== file details ==============================
                                           'mtime'  1642257097.6629233  (2022-01-15 15:31:37)
                             'size'  10292411