======================== unified (from filesystem) ========================
                                         'bitrate'  '223.59'
                                        'duration'  '180'
                                          'artist'  'Dr. Kucho! & Gregor Salto'
                                     'text_people'  ''
                                         'release'  'Radio 538 Dance Smash Hits 2005, Volume 2'
                                           'title'  "Can't Stop Playing"
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['house', 'electronic', 'dance', 'tech house', 'funky house']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '22'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '128.008'
                                             'key'  '5A'
                                        '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)                     'Radio 538 Dance Smash Hits 2005, Volume 2'
'TBPM' (BPM (beats per minute))                     '128.008'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         "Can't Stop Playing"
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dr. Kucho! & Gregor Salto'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '13/22'
'TSOP' (Performer sort order)                       'Dr. Kucho! & Gregor Salto'
'TXXX:ALBUMARTISTSORT'                              'Various Artists'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '43345b31-6938-436d-9446-133c303b3184'
'TXXX:MusicBrainz Album Release Country'            'NL'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'e00bd42b-334c-4494-98b4-309612de946e'
'TXXX:MusicIP PUID'                                 'a1666451-2ca3-c520-f12e-b8f9f9f400ee'
'TXXX:MusicMagic Data'                              'AQEAzN65l7uQZ6mogpUaFE5B1SKBJIACsqCVgVeZ5yAOCoABgAGrQcF22cYyzNZjhhSAAe56hjXgqRH9gAHb2uNEEVKjxNB0+HeagQ=='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:added_timestamp'                              '128930990202923527'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['house', 'electronic', 'dance', 'tech house', 'funky house']
'TXXX:q-bass'                                       '4'
'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'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.21 dB'
'TXXX:replaygain_track_peak'                        '0.401654'

========================== row from database ==========================
                                              'id'  1502287
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/top, dance, club, best of, etc/538 Dance Smash 2005-02-13-Dr. Kuchol !26 Gregor Salto-Can_t Stop Playing.mp3
                                         'working'  None
                                         'bitrate'  223
                                    'duration_sec'  180
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  5058380
                                           'mtime'  1621696840
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted top, dance, club, best of, etc 02 13 Kuchol !26 Can_t electronic generic radio dance
                                      'tag_artist'  Dr. Kucho! & Gregor Salto
                                     'tag_release'  Radio 538 Dance Smash Hits 2005, Volume 2
                                       'tag_title'  Can't Stop Playing
                                             'bpm'  128.008
                                    'search_title'  'can':1 'cant':3 'playing':5 'stop':4 't':2
                                   'search_artist'  'dr':1,2 'gregor':4 'kucho':3 'salto':5
                                  'search_release'  '2':9 '2005':6,7 '538':2 'dance':3 'hits':5 'radio':1 'smash':4 'volume':8
                                     'search_rest'  '00poprockelectronic':1 '26':14 'best':9 'can':15 'club':7,8 'dance':5,6 'electronic':17 'etc':12 'generic':18 'kuchol':13 'of':10,11 'radio':19 't':16 'top':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':20 '2':19C '2005':16C,17C '26':33 '538':12C 'best':28 'can':1A,34 'cant':3A 'club':26,27 'dance':13C,24,25 'dr':6B,7B 'electronic':36 'etc':31 'generic':37 'gregor':9B 'hits':15C 'kucho':8B 'kuchol':32 'of':29,30 'playing':5A 'radio':11C,38 'salto':10B 'smash':14C 'stop':4A 't':2A,35 'top':22,23 'unsorted':21 'volume':18C
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['house', 'electronic', 'dance', 'tech house', 'funky house']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696839.9456022  (2021-05-22 17:20:39)
                             'size'  5058380