======================== unified (from filesystem) ========================
                                         'bitrate'  '260.486'
                                        'duration'  '294'
                                          'artist'  'David Bowie'
                                     'text_people'  ''
                                         'release'  'Scary Monsters... and Super Creeps'
                                           'title'  "Because You're Young"
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['classic rock', '80s', 'alternative', 'rock', 'glam rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '10'
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '122.289'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 0000146D 00000CCA 00006F8B'
'COMM:iTunNORM:eng'                                 (' 0000146D 00000CCA 00006F8B 00003904 00012DFE 00010B69 00008000 00007919 '
 '000443D0 00026798')
'COMM:iTunPGAP:eng'                                 '1'
'TALB' (Album/Movie/Show title)                     'Scary Monsters... and Super Creeps'
'TBPM' (BPM (beats per minute))                     '122.289'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         "Because You're Young"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'David Bowie'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '9/10'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.45 dB'
'TXXX:replaygain_track_peak'                        '0.469011'

========================== row from database ==========================
                                              'id'  1517954
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/David Bowie - Scary Monsters... and Super Creeps (24-bit Remaster Series)/09 Because You_re Young.mp3
                                         'working'  None
                                         'bitrate'  260
                                    'duration_sec'  294
                                           'genre'  rock-unsorted
                                        'filesize'  9797458
                                           'mtime'  1620386209
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (24 bit Remaster Series) 09 You_re rock unsorted
                                      'tag_artist'  David Bowie
                                     'tag_release'  Scary Monsters... and Super Creeps
                                       'tag_title'  Because You're Young
                                             'bpm'  122.289
                                    'search_title'  'because':1 're':3 'you':2 'young':5 'youre':4
                                   'search_artist'  'bowie':2 'david':1
                                  'search_release'  'and':4 'creeps':6 'monsters':2,3 'scary':1 'super':5
                                     'search_rest'  '24':2,3 'bit':4 'classicprogpsy':1 're':9 'remaster':5 'rock':10 'series':6,7 'unsorted':11 'you':8
                                    'search_combo'  '24':15,16 'and':11C 'because':1A 'bit':17 'bowie':7B 'classicprogpsy':14 'creeps':13C 'david':6B 'monsters':9C,10C 're':3A,22 'remaster':18 'rock':23 'scary':8C 'series':19,20 'super':12C 'unsorted':24 'you':2A,21 'young':5A 'youre':4A
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620386208.739197  (2021-05-07 13:16:48)
                             'size'  9797458