======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '188'
                                          'artist'  'Armin Van Buuren feat. Nadia Ali'
                                     'text_people'  ''
                                         'release'  '538 Dance Smash 2011 Vol.3'
                                           'title'  ' Feels So Good'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', '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-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['trance', 'progressive trance', 'electronic', 'vocal trance', 'dance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '129.979'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '538 Dance Smash 2011 Vol.3'
'TBPM' (BPM (beats per minute))                     '129.979'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         ' Feels So Good'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Armin Van Buuren feat. Nadia Ali'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '16'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['trance', 'progressive trance', 'electronic', 'vocal trance', 'dance']
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-2.09 dB'
'TXXX:replaygain_track_peak'                        '0.415501'

========================== row from database ==========================
                                              'id'  1403486
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/538 Dance Smash Hits/538 Dance Smash 2011 Vol.3 DutchReleaseTeam/16 - Armin Van Buuren feat. Nadia Ali  - Feels So Good.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  188
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  8075313
                                           'mtime'  1621695827
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Hits DutchReleaseTeam 16 electronic generic or radio dance
                                      'tag_artist'  Armin Van Buuren feat. Nadia Ali
                                     'tag_release'  538 Dance Smash 2011 Vol.3
                                       'tag_title'   Feels So Good
                                             'bpm'  129.979
                                    'search_title'  'feels':1 'good':3 'so':2
                                   'search_artist'  'ali':7 'armin':1 'buuren':3 'feat':4,5 'nadia':6 'van':2
                                  'search_release'  '2011':4 '3':6 '538':1 'dance':2 'smash':3 'vol':5 'vol3':7
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'dutch':10 'dutchreleaseteam':6 'electronic':7 'generic':2 'hits':5 'or':8 'radio':9 'release':11 'team':12 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':18 '2011':14C '3':16C '538':11C 'ali':10B 'armin':4B 'buuren':6B 'dance':12C,20 'dutch':27 'dutchreleaseteam':23 'electronic':24 'feat':7B,8B 'feels':1A 'generic':19 'good':3A 'hits':22 'nadia':9B 'or':25 'radio':26 'release':28 'smash':13C 'so':2A 'team':29 'trapbeat':21 'van':5B 'vol':15C 'vol3':17C
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['trance', 'progressive trance', 'electronic', 'vocal trance', 'dance']
                                        'tag_date'  2011
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695826.626286  (2021-05-22 17:03:46)
                             'size'  8075313