======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '450'
                                          'artist'  'Charlie Brown Superstar'
                                     'text_people'  ''
                                         'release'  'Indie Dance - Nu Disco 2'
                                           'title'  'Sing Sing'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['funk']"
                                     'discogstags'  "['house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '120.0'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Indie Dance - Nu Disco 2'
'TBPM' (BPM (beats per minute))                     '120.0'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Sing Sing'
'TKEY' (Initial key)                                '9A'
'TOAL' (Original album/movie/show title)            'Afro Disco Funk'
'TPE1' (Lead performer(s)/Soloist(s))               'Charlie Brown Superstar'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['house', 'electronic']
'TXXX:lastfmtags'                                   'funk'
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.29 dB'
'TXXX:replaygain_track_peak'                        '0.453111'

========================== row from database ==========================
                                              'id'  1408643
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Antonio Santana, Malikk - Indie Dance - Nu Disco 02/Charlie Brown Superstar - Sing Sing.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  450
                                           'genre'  funk or soul
                                        'filesize'  18095127
                                           'mtime'  1621508875
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Antonio Santana, Malikk 02 funk or soul
                                      'tag_artist'  Charlie Brown Superstar
                                     'tag_release'  Indie Dance - Nu Disco 2
                                       'tag_title'  Sing Sing
                                             'bpm'  120.0
                                    'search_title'  'sing':1
                                   'search_artist'  'brown':2 'charlie':1 'superstar':3
                                  'search_release'  '2':5 'dance':2 'disco':4 'indie':1 'nu':3
                                     'search_rest'  '00poprockelectronic':1 'antonio':5 'dance':3 'funk':9 'generic':2 'malikk':8 'or':10 'santana':6,7 'soul':11 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':10 '2':9C 'antonio':14 'brown':3B 'charlie':2B 'dance':6C,12 'disco':8C 'funk':18 'generic':11 'indie':5C 'malikk':17 'nu':7C 'or':19 'santana':15,16 'sing':1A 'soul':20 'superstar':4B 'trapbeat':13
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['funk']
                                        'tag_date'  2015
                                     'discogstags'  ['house', 'electronic']

============================== file details ==============================
                                           'mtime'  1621508874.90173  (2021-05-20 13:07:54)
                             'size'  18095127