======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '212'
                                          'artist'  'College'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'A Real Hero (feat. Electric Youth) (Nightcore Mix)'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electro', 'electronic', 'valerie', 'french', 'synthpop']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '140.238'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'www.dvdvideosoft.com'
'TBPM' (BPM (beats per minute))                     '140.238'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'A Real Hero (feat. Electric Youth) (Nightcore Mix)'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'College'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electro', 'electronic', 'valerie', 'french', 'synthpop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.20 dB'
'TXXX:replaygain_track_peak'                        '0.414808'

========================== row from database ==========================
                                              'id'  1306308
                                            'path'  /data/Music/Bulk/00poprockelectronic/College & Electric Youth/College -  A Real Hero (feat. Electric Youth) (Nightcore Mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  212
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  8518071
                                           'mtime'  1620568734
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic & electronic we disco italo
                                      'tag_artist'  College
                                     'tag_release'  None
                                       'tag_title'  A Real Hero (feat. Electric Youth) (Nightcore Mix)
                                             'bpm'  140.238
                                    'search_title'  'a':1 'electric':6 'feat':4,5 'hero':3 'mix':11,12 'nightcore':9,10 'real':2 'youth':7,8
                                   'search_artist'  'college':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'disco':4 'electronic':2 'italo':5 'we':3
                                    'search_combo'  '00poprockelectronic':14 'a':1A 'college':13B 'disco':17 'electric':6A 'electronic':15 'feat':4A,5A 'hero':3A 'italo':18 'mix':11A,12A 'nightcore':9A,10A 'real':2A 'we':16 'youth':7A,8A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-HAP-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['electro', 'electronic', 'valerie', 'french', 'synthpop']
                                        'tag_date'  2010
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620568734.4894466  (2021-05-09 15:58:54)
                             'size'  8518071