======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '200'
                                          'artist'  'Justin Bieber'
                                     'text_people'  ''
                                         'release'  'M.O.S. Marbella Collection 2016 - CD3'
                                           'title'  'What Do You Mean'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', '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-3', 'q-mixbeat-3']")
                                      'lastfmtags'  "['rnb', 'black metal', 'pop', 'hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  '20'
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '125.0'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'M.O.S. Marbella Collection 2016 - CD3'
'TBPM' (BPM (beats per minute))                     '125.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'What Do You Mean'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Justin Bieber'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '01/20'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.83.01, LAME dll 3.99, 320 Kbit/s, Stereo, High quality'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rnb', 'black metal', 'pop', 'hip hop']
'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'                        '-0.81 dB'
'TXXX:replaygain_track_peak'                        '0.437961'

========================== row from database ==========================
                                              'id'  1332632
                                            'path'  /data/Music/Bulk/00poprockelectronic/M.O.S. Marbella Collection 2016 - CD3/01 - Justin Bieber - What Do You Mean.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  200
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  8354503
                                           'mtime'  1620570732
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic electronic generic or radio dance
                                      'tag_artist'  Justin Bieber
                                     'tag_release'  M.O.S. Marbella Collection 2016 - CD3
                                       'tag_title'  What Do You Mean
                                             'bpm'  125.0
                                    'search_title'  'do':2 'mean':4 'what':1 'you':3
                                   'search_artist'  'bieber':2 'justin':1
                                  'search_release'  '2016':7 'cd3':8 'collection':6 'm':1 'marbella':5 'mos':4 'o':2 's':3
                                     'search_rest'  '00poprockelectronic':1 'dance':6 'electronic':2 'generic':3 'or':4 'radio':5
                                    'search_combo'  '00poprockelectronic':15 '2016':13C 'bieber':6B 'cd3':14C 'collection':12C 'dance':20 'do':2A 'electronic':16 'generic':17 'justin':5B 'm':7C 'marbella':11C 'mean':4A 'mos':10C 'o':8C 'or':18 'radio':19 's':9C 'what':1A 'you':3A
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-2', '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-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rnb', 'black metal', 'pop', 'hip hop']
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620570732.0709982  (2021-05-09 16:32:12)
                             'size'  8354503