======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '344'
                                          'artist'  'Deejay Parade Collection'
                                     'text_people'  ''
                                         'release'  'Deejay Parade Collection CD.05'
                                           'title'  '09. Paul Johnson / Get Get Down ( Original Extended Mix )'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '127'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Deejay Parade Collection CD.05'
'TBPM' (BPM (beats per minute))                     '127'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         '09. Paul Johnson / Get Get Down ( Original Extended Mix )'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Deejay Parade Collection'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'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'                        '+0.07 dB'
'TXXX:replaygain_track_peak'                        '0.368656'

========================== row from database ==========================
                                              'id'  1284090
                                            'path'  /data/Music/Bulk/00poprockelectronic/set/Paul Johnson _ Get Get Down ( Original Extended Mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  344
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  13777398
                                           'mtime'  1620573858
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic set _ Mix) electronic generic or radio dance
                                      'tag_artist'  Deejay Parade Collection
                                     'tag_release'  Deejay Parade Collection CD.05
                                       'tag_title'  09. Paul Johnson / Get Get Down ( Original Extended Mix )
                                             'bpm'  127.0
                                    'search_title'  '09':1,2 'down':6 'extended':8 'get':5 'johnson':4 'mix':9 'original':7 'paul':3
                                   'search_artist'  'collection':3 'deejay':1 'parade':2
                                  'search_release'  '05':5 'cd':4 'cd05':6 'collection':3 'deejay':1 'parade':2
                                     'search_rest'  '00poprockelectronic':1 'dance':9 'electronic':5 'generic':6 'mix':3,4 'or':7 'radio':8 'set':2
                                    'search_combo'  '00poprockelectronic':19 '05':17C '09':1A,2A 'cd':16C 'cd05':18C 'collection':12B,15C 'dance':27 'deejay':10B,13C 'down':6A 'electronic':23 'extended':8A 'generic':24 'get':5A 'johnson':4A 'mix':9A,21,22 'or':25 'original':7A 'parade':11B,14C 'paul':3A 'radio':26 'set':20
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  4A
                                           '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-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573857.911458  (2021-05-09 17:24:17)
                             'size'  13777398