======================== unified (from filesystem) ========================
                                         'bitrate'  '191.978'
                                        'duration'  '231'
                                          'artist'  'Harry "Choo Choo" Romero'
                                     'text_people'  ''
                                         'release'  'DAMN! Top 100 (disc 4)'
                                           'title'  'I Go Back'
                                           'quals'  ("['Q-UNU-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-3', 'q-drums-4', 'q-other-1', "
 "'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['house', 'electronic', 'tech house', 'techno', 'haeuslicher-b0lzen']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '25'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '121.047'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     'DAMN! Top 100 (disc 4)'
'TBPM' (BPM (beats per minute))                     '121.047'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'I Go Back'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry "Choo Choo" Romero'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '15/25'
'TSOP' (Performer sort order)                       'Romero, Harry "Choo Choo"'
'TXXX:ALBUMARTISTSORT'                              'Various Artists'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '4070101f-2798-4933-9e73-517b03141716'
'TXXX:MusicBrainz Album Release Country'            'NL'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '731b7296-20ed-4a55-a548-55e123ffcf4c'
'TXXX:MusicIP PUID'                                 'ae4254d0-0d66-a9d0-2f1c-ad42804ebad0'
'TXXX:MusicMagic Data'                              'AgEBIJAJlb6PWquXgbQPjGMY10eAxYXgvpCUSlnQrbwHNoABgAG6TLt+5Qvg3L3mgJ+AAeA0geTh4ADsgAHPyN68EPyti8fOHT6AAZZEl3C+P4QyHQJFn8+pgiKEmMTGlp5SMrSWBMmMp4K0wpq0TdSU7XXaMYPtgSb5LYfDBzX7QIEM0N/mHw2Wq3bYEdZZgT4='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:added_timestamp'                              '128930990202923527'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['house', 'electronic', 'tech house', 'techno', 'haeuslicher-b0lzen']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+4.67 dB'
'TXXX:replaygain_track_peak'                        '0.326084'

========================== row from database ==========================
                                              'id'  1501371
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/top, dance, club, best of, etc/090. Harry _Choo Choo_ Romero Ft. Robert Owans - I Go Back.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  231
                                           'genre'  electronic-unsorted
                                        'filesize'  5570500
                                           'mtime'  1620573246
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted top, dance, club, best of, etc 090. _Choo Choo_ Ft. Robert Owans electronic unsorted
                                      'tag_artist'  Harry "Choo Choo" Romero
                                     'tag_release'  DAMN! Top 100 (disc 4)
                                       'tag_title'  I Go Back
                                             'bpm'  121.047
                                    'search_title'  'back':3 'go':2 'i':1
                                   'search_artist'  'choo':2,3 'harry':1 'romero':4
                                  'search_release'  '100':3 '4':6,7 'damn':1 'disc':4,5 'top':2
                                     'search_rest'  '00poprockelectronic':1 '090':13,14 'best':9 'choo':15,16 'club':7,8 'dance':5,6 'electronic':21 'etc':12 'ft':17,18 'of':10,11 'owans':20 'robert':19 'top':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':15 '090':27,28 '100':10C '4':13C,14C 'back':3A 'best':23 'choo':5B,6B,29,30 'club':21,22 'damn':8C 'dance':19,20 'disc':11C,12C 'electronic':35 'etc':26 'ft':31,32 'go':2A 'harry':4B 'i':1A 'of':24,25 'owans':34 'robert':33 'romero':7B 'top':9C,17,18 'unsorted':16
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['house', 'electronic', 'tech house', 'techno', 'haeuslicher-b0lzen']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620573246.15348  (2021-05-09 17:14:06)
                             'size'  5570500