======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '330'
                                          'artist'  'Leroy Holmes'
                                     'text_people'  ''
                                         'release'  'Ultra-Lounge, Volume 16: Mondo Hollywood'
                                           'title'  'I, A Lover / De Sade'
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                                      'lastfmtags'  "['instrumental', 'fip', 'jazz', 'james bond', 'easy listening', 'lounge']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '19'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '118.428'
                                             'key'  '8A'
                                        'acoustid'  'f3219372-0885-43d1-a487-47d7ab2c3ec2'
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Ultra-Lounge, Volume 16: Mondo Hollywood'
'TBPM' (BPM (beats per minute))                     '118.428'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDOR' (Original release time)                      '1997'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'I, A Lover / De Sade'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '330346'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Leroy Holmes'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Capitol Records'
'TRCK' (Track number/Position in set)               '12/19'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Holmes, Leroy'
'TXXX:ASIN'                                         'B000002UFM'
'TXXX:Acoustid Id'                                  'f3219372-0885-43d1-a487-47d7ab2c3ec2'
'TXXX:BARCODE'                                      '724385256028'
'TXXX:CATALOGNUMBER'                                '7243 8 52560 2 8'
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'TXXX:MusicBrainz Album Id'                         'c9399f55-6bdf-48e6-986e-eb88552e4600'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '468e0793-08fa-44c0-a841-761ba71a2e1e'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['instrumental', 'fip', 'jazz', 'james bond', 'easy listening', 'lounge']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.03 dB'
'TXXX:replaygain_track_peak'                        '0.607201'
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========================== row from database ==========================
                                              'id'  763611
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Ultra Lounge 16 - Mondo Hollywood/12. Leroy Holmes - I, A Lover De Sade.mp3
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                                    'duration_sec'  330
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  7941010
                                           'mtime'  1620536896
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 12. prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Leroy Holmes
                                     'tag_release'  Ultra-Lounge, Volume 16: Mondo Hollywood
                                       'tag_title'  I, A Lover / De Sade
                                             'bpm'  118.428
                                    'search_title'  'a':3 'de':5 'i':1,2 'lover':4 'sade':6
                                   'search_artist'  'holmes':2 'leroy':1
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                                     'search_rest'  '12':5,6 'bossa':11 'country':4 'exotica':2 'jazz':1 'jb':8 'lounge':9 'oldies':3 'or':10 'prerock':7
                                    'search_combo'  '12':21,22 '16':13C,14C 'a':3A 'bossa':27 'country':20 'de':5A 'exotica':18 'hollywood':16C 'holmes':8B 'i':1A,2A 'jazz':17 'jb':24 'leroy':7B 'lounge':10C,25 'lover':4A 'mondo':15C 'oldies':19 'or':26 'prerock':23 'sade':6A 'ultra':9C 'ultralounge':11C 'volume':12C
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'fip', 'jazz', 'james bond', 'easy listening', 'lounge']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536896.4162612  (2021-05-09 07:08:16)
                             'size'  7941010