======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '368'
                                          'artist'  'KFDDA'
                                     'text_people'  ''
                                         'release'  'Luigi Donetallo'
                                           'title'  'Heavy Metal Feat. Nate Madsen & Zach Crabt'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronic', 'electro techno', 'electro', 'synthwave', 'darksynth']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-we-synthwave or chillwave or retrowave'
                                             'bpm'  '90.1'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Luigi Donetallo'
'TBPM' (BPM (beats per minute))                     '90.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-synthwave or chillwave or retrowave'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Heavy Metal Feat. Nate Madsen & Zach Crabt'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'KFDDA'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronic', 'electro techno', 'electro', 'synthwave', 'darksynth']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.93 dB'
'TXXX:replaygain_track_peak'                        '0.601982'

========================== row from database ==========================
                                              'id'  1313335
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00synthwave/LuigiDonatello/KFDDA - Heavy Metal Feat. Nate Madsen & Zach Crabt.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  368
                                           'genre'  electronic-we-synthwave or chillwave or retrowave
                                        'filesize'  5915532
                                           'mtime'  1620610882
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00synthwave LuigiDonatello electronic we synthwave or chillwave or retrowave
                                      'tag_artist'  KFDDA
                                     'tag_release'  Luigi Donetallo
                                       'tag_title'  Heavy Metal Feat. Nate Madsen & Zach Crabt
                                             'bpm'  90.1
                                    'search_title'  'crabt':8 'feat':3,4 'heavy':1 'madsen':6 'metal':2 'nate':5 'zach':7
                                   'search_artist'  'kfdda':1
                                  'search_release'  'donetallo':2 'luigi':1
                                     'search_rest'  '00poprockelectronic':1 '00synthwave':4 'chillwave':10 'disco':3 'donatello':13 'electronic':6 'luigi':12 'luigidonatello':5 'or':9 'retrowave':11 'synthwave':8 'waves':2 'we':7
                                    'search_combo'  '00poprockelectronic':12 '00synthwave':15 'chillwave':21 'crabt':8A 'disco':14 'donatello':24 'donetallo':11C 'electronic':17 'feat':3A,4A 'heavy':1A 'kfdda':9B 'luigi':10C,23 'luigidonatello':16 'madsen':6A 'metal':2A 'nate':5A 'or':20 'retrowave':22 'synthwave':19 'waves':13 'we':18 'zach':7A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'electro techno', 'electro', 'synthwave', 'darksynth']
                                        'tag_date'  2015
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620610882.473214  (2021-05-10 03:41:22)
                             'size'  5915532