======================== unified (from filesystem) ========================
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                                        'duration'  '321'
                                          'artist'  'Lynyrd Skynyrd'
                                     'text_people'  ''
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                                           'title'  'I Never Dreamed'
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                                      'lastfmtags'  "['hard rock', 'southern rock', 'rock', '70s', 'classic rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '12'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '119.900'
                                             'key'  '7B'
                                        'acoustid'  '32ec9652-6cf2-4c73-ad95-755c03044c35'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Essential Lynyrd Skynyrd'
'TBPM' (BPM (beats per minute))                     '119.900'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1998-08-25'
'TIT2' (Title/songname/content description)         'I Never Dreamed'
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Lynyrd Skynyrd'
'TPE2' (Band/orchestra/accompaniment)               'Lynyrd Skynyrd'
'TPOS' (Part of a set)                              '2/2'
'TPUB' (Publisher)                                  'MCA Records'
'TRCK' (Track number/Position in set)               '7/12'
'TSO2'                                              'Lynyrd Skynyrd'
'TSOP' (Performer sort order)                       'Lynyrd Skynyrd'
'TSRC' (ISRC (international standard recording code))  'USMC17747111'
'TXXX:ASIN'                                         'B00000ADJX'
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'TXXX:MusicBrainz Album Id'                         '5d998987-ab6d-4ffc-a5db-255436bb415a'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
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'TXXX:Q-JZFKS'                                      '1'
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'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['hard rock', 'southern rock', 'rock', '70s', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.18 dB'
'TXXX:replaygain_track_peak'                        '0.724908'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd8bd9d7c-1e37-4a0b-9cdd-545752e8d3dc')

========================== row from database ==========================
                                              'id'  1297340
                                            'path'  /data/Music/Bulk/00poprockelectronic/Lynyrd Skynyrd/Lynyrd Skynyrd - The Essential/The Essential Lynyrd Skynyrd (Disk 2)/Lynyrd Skynyrd - The Essentials Lynyrd Skynyrd (Disk 2) - 07 - I Never Dreamed.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  321
                                           'genre'  rock-cppex-classic
                                        'filesize'  6437605
                                           'mtime'  1636039298
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic (Disk 2) Essentials (Disk 2) 07 rock cppex classic
                                      'tag_artist'  Lynyrd Skynyrd
                                     'tag_release'  The Essential Lynyrd Skynyrd
                                       'tag_title'  I Never Dreamed
                                             'bpm'  119.9
                                    'search_title'  'dreamed':3 'i':1 'never':2
                                   'search_artist'  'lynyrd':1 'skynyrd':2
                                  'search_release'  'essential':2 'lynyrd':3 'skynyrd':4 'the':1
                                     'search_rest'  '00poprockelectronic':1 '2':4,5 'classic':9 'cppex':8 'disk':2,3 'essentials':6 'rock':7
                                    'search_combo'  '00poprockelectronic':10 '2':13,14 'classic':18 'cppex':17 'disk':11,12 'dreamed':3A 'essential':7C 'essentials':15 'i':1A 'lynyrd':4B,8C 'never':2A 'rock':16 'skynyrd':5B,9C 'the':6C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['hard rock', 'southern rock', 'rock', '70s', 'classic rock']
                                        'tag_date'  1998
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636039297.8140771  (2021-11-04 16:21:37)
                             'size'  6437605