======================== unified (from filesystem) ========================
                                         'bitrate'  '255.955'
                                        'duration'  '195'
                                          'artist'  'David Bowie'
                                     'text_people'  ''
                                         'release'  'Scary Monsters... and Super Creeps'
                                           'title'  'Up The Hill Backwards'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']")
                                      'lastfmtags'  "['classic rock', '80s', 'alternative', 'rock', 'glam rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '10'
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '92.518'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000ECE 00000A03 000034B2'
'COMM:iTunNORM:eng'                                 (' 00000ECE 00000A03 000034B2 000027B3 00004D47 00026FFE 00008000 0000705E '
 '00010D8C 00010D8C')
'COMM:iTunPGAP:eng'                                 '1'
'TALB' (Album/Movie/Show title)                     'Scary Monsters... and Super Creeps'
'TBPM' (BPM (beats per minute))                     '92.518'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Up The Hill Backwards'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'David Bowie'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '2/10'
'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'                                       '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.38 dB'
'TXXX:replaygain_track_peak'                        '0.403691'

========================== row from database ==========================
                                              'id'  1419068
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/David Bowie - Scary Monsters... and Super Creeps (24-bit Remaster Series)/02 Up The Hill Backwards.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  195
                                           'genre'  rock-unsorted
                                        'filesize'  6457170
                                           'mtime'  1620386208
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (24 bit Remaster Series) 02 rock unsorted
                                      'tag_artist'  David Bowie
                                     'tag_release'  Scary Monsters... and Super Creeps
                                       'tag_title'  Up The Hill Backwards
                                             'bpm'  92.518
                                    'search_title'  'backwards':4 'hill':3 'the':2 'up':1
                                   '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 'remaster':5 'rock':8 'series':6,7 'unsorted':9
                                    'search_combo'  '24':14,15 'and':10C 'backwards':4A 'bit':16 'bowie':6B 'classicprogpsy':13 'creeps':12C 'david':5B 'hill':3A 'monsters':8C,9C 'remaster':17 'rock':20 'scary':7C 'series':18,19 'super':11C 'the':2A 'unsorted':21 'up':1A
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620386208.393803  (2021-05-07 13:16:48)
                             'size'  6457170